CIO Playbook / Microsoft Licensing

CIO Playbook: Selecting the Right Microsoft 365 Enterprise Plan

CIO Playbook: Selecting the Right Microsoft 365 Enterprise Plan (2025 Edition)

CIO Playbook Selecting the Right Microsoft 365 Enterprise

Introduction

Chief Information Officers (CIOs) face a complex landscape when choosing a Microsoft 365 enterprise plan. This playbookย aims to provide a neutral, detailed guide for selecting the optimal Microsoft 365 plan for your organization.

We will cover the major enterprise plans โ€“ E1, E3, E5, F1, F3, and Business plans relevant to larger organizations, including their pricing, features, and available add-ons like Microsoft Copilot, Defender, and Viva.

The guide is structured in an advisory format (similar to Gartner reports) to help you assess business needs, map plans to industry requirements, ask the right questions, analyze costs, and make informed decisions.

All recommendations emphasize engaging independent licensing experts for clarity and fairness.

Key Takeaways:

  • Microsoft 365 plans differ widely in capabilities and cost, so it is critical to align them with your organizationโ€™s specific needs.
  • Enterprise plans (E-series) serve information workers with full productivity suites, while Frontline plans (F-series) target field or customer-facing staff with lighter tools.
  • Mix-and-match licensing allows you to assign plans to different user groups to optimize value.
  • Considerย regulatory compliance, security needs, workforce type, and budget constraints when evaluating plans.
  • Independent licensing advisors (not just vendors) should be consulted to navigate complexities, optimize costs, and ensure compliance.

Overview of Microsoft 365 Plans and Their Distinctions

Microsoft 365 has multiple tiers tailored to organization size and worker type. Understanding howย Enterprise (E-level),ย Frontline (F-level), andย Business plansย differ is important.

Below is an overview of each major plan as of 2025, along with core features and pricing.

Enterprise Plans (E1, E3, E5)

Enterprise โ€œEโ€ plans are designed for organizations with over 300 users or complex requirements. These plans include the full Office 365 cloud services suite, and the Microsoft 365 versions also bundle Windows Enterprise OS and advanced security (EMS) features.

Key differences are in the availability of desktop apps and the depth of security/compliance tools:

  • Microsoft 365 E1: Entry-level enterprise suite. Provides core cloud services but no desktop Office apps. Users get web and mobile versions of Word, Excel, PowerPoint, Outlook, Teams, business email (50 GB mailbox), and 1 TB of OneDrive cloud storage. Basic collaboration via SharePoint and Teams is included. Security and compliance features are limited to baseline capabilities (e.g., Exchange Online Protection for email). Price: Approximately $10 per user/month (annual commitment). This low-cost plan suits organizations needing email and web Office access for many users without heavy content creation needs. However, the lack of desktop apps means itโ€™s not ideal for power users who require full offline functionality.
  • Microsoft 365 E3: Standard enterprise plan. Includes full Office desktop applications on up to 5 PCs/Macs per user and web and mobile apps. Provides enhanced services: Exchange Online Plan 2 (100 GB email + unlimited archive), SharePoint, Teams with meeting and collaboration features, and 1 TB OneDrive (expandable for large orgs). Importantly, E3 adds advanced enterprise security & device management: Azure Active Directory Premium P1 for identity management, Microsoft Intune for device/application management, and information protection (e.g. data loss prevention, BitLocker management). Windows 10/11 Enterprise OS upgrade rights are included, allowing use of Windows Enterprise on licensed devices. Compliance features like legal hold and basic eDiscovery are provided. Price: Approximately $36 per user/month. E3 is often the best fit for most enterprises, balancing comprehensive productivity tools with robust (but not cutting-edge) security/compliance. It covers typical needs for organizations that require desktop Office and moderate security.
  • Microsoft 365 E5: Top-tier enterprise plan. Includes everything in E3 plus a full suite of advanced security, compliance, telephony, and analytics. E5 brings Microsoftโ€™s highest-end features: Azure AD Premium P2 (with Privileged Identity Management and Identity Protection), Microsoft Defender for Endpoint, Defender for Office 365 Plan 2 (advanced threat protection for email and collaboration), Defender for Identity (on-prem AD threat detection), and Cloud App Security โ€“ essentially the full EMS E5 security suite is included. Compliance and information governance are enhanced via Microsoft Purview (advanced eDiscovery, Audit, Records Management, and Insider Risk management tools). Power BI Proย is included for all users (enterprise business intelligence) for analytics. In communications, E5 includes Phone System and Audio Conferencing capabilities โ€“ enabling Teams telephony (though calling plans or Direct Routing minutes are extra) and dial-in audio conferencing for meetings. Price: Approximately $57 per ser/month. E5 is suited for large organizations in highly regulated or security-sensitive industries (finance, healthcare, government) that need state-of-the-art protections, or those wanting built-in analytics and calling capabilities. The cost is roughly 50% higher than E3, so businesses must ensure they need the added features to justify this tier.

Note: Microsoft also offers Office 365 E1, E3, and E5 plans, which include the Office apps and cloud services but exclude the Windows OS and certain security components.

This playbook focuses on the full Microsoft 365 versions of E3/E5 (which bundle the OS and EMS security suite). If your organization already covers Windows licensing separately or through upgrades, you could choose Office 365 E3/E5 instead, but many enterprises prefer the integrated Microsoft 365 bundle for simplicity.

Also, as of 2024, Microsoft introduced versions of the Enterprise plans โ€œwithout Teamsโ€ (reflecting regulatory unbundling in some regions).

These have slightly lower base prices but require a separate $5/month Teams Enterprise license if you need Teams functionality, often resulting in a higher combined cost. For most CIOs, the regular plans (with Teams included) remain the standard choice for an all-in-one suite.

Read Microsoft 365 E3/E5 Enterprise Licensing Negotiation Toolkit.

Frontline Worker Plans (F1, F3)

Frontline โ€œFโ€ plans are optimized for frontline employees who primarily work in the field, on the shop floor, or in customer service roles (e.g., retail associates, factory workers, nurses, etc.).

These users may not need full desktop apps or may share devices, so F plans provide essential communication and cloud services at a lower price point:

  • Microsoft 365 F1:ย Kiosk/Essentials plan for the frontline. Offers the basics for communication: Microsoft Teams (chat, meetings, limited channels), SharePoint (for intranet access), Viva Engage (Yammer Communities for company-wide communications), and web-based viewing of Office files. F1 users get Exchange Online Kiosk (a 2 GB lightweight mailbox with Outlook on the web only, no Outlook desktop client) โ€“ sufficient for calendar and occasional email needs, but not a full Exchange license. OneDrive storage is very limited (e.g., 2 GB). No Office apps are included (not even web editing for Word/Excel) โ€“ F1 is primarily for messaging and intranet access. Basic security is in place for these cloud services, but devices are often shared or locked-down kiosks. Price: $ 2.25 per user/month (with annual commitment). This plan works for employees who need to check email, calendars, or receive company updates on shared terminals or personal mobile devices, such as shift workers or retail staff. Itโ€™s extremely limited for content creation or independent work.
  • Microsoft 365 F3: Full-featured frontline plan. This plan is a significant step up, including web and mobile versions of Office apps (Word, Excel, PowerPoint) for productivity on the go (still no desktop Office installation rights, however). Users get a 2 GB mailbox with web/Outlook mobile access and 2 GB OneDrive storage โ€“ these caps align with frontline usage patterns (heavy email or storage needs would warrant an E plan). F3 also comes with Microsoft Teams (for chat/meetings) and SharePoint, similar to F1 but with more capability to create/edit content via web Office. Notably, Microsoft 365 F3 includes a license for Windows Enterprise E3 and basic device management rights, allowing a user to log into a Windows Enterprise device (good for shared workstation scenarios or if the frontline users have company tablets). It also has some security enhancements like Microsoft Defender (endpoint protection optimized for lightweight devices) and Credential Guard to secure identity on shared devices. Price: $8 per user/month. F3 is ideal when frontline personnel must participate in data entry, view/edit documents, or use Microsoft 365 apps on tablets/phones. However, you still want to control costs and donโ€™t require full desktop Office installations. It strikes a balance by giving frontline workers access to the cloud ecosystem and even Windows, without the full expense of an E3 license.

Important: F-plan licenses are often applied to many users in large enterprises (e.g., thousands of retail workers), so their lower cost can save significantly versus assigning E licenses to users who would underutilize them.

However, remember the storage/mailbox limitations โ€“ organizations must plan how frontline staff will operate within those constraints (e.g., using shared mailboxes or Teams for communication instead of individual large mailboxes).

Business Plans (for SMB, up to 300 users)

In addition to E and F plans, Microsoft offers Business plans (Business Basic, Business Standard, Business Premium, and others,) which are capped at 300 users per plan.

These plans are typically marketed to small and mid-sized businesses. Still, larger organizations (enterprise tenants) might consider them for certain scenarios (for example, a subsidiary or a pilot group) as long as they stay within seat limits.

Each Business plan provides a bundle of Office 365 services with some differences in included features and security:

  • Microsoft 365 Business Basic: Cloud services only, similar to E1. Includes Exchange email (50 GB mailbox), Teams, SharePoint, and OneDrive (1 TB), with web and mobile app access only for Office apps (no desktop apps). Price: $6 per user/month (annual). This is a low-cost option for small organizations or users who only need email and online Office. Still, itโ€™s rarely used in larger enterprises except perhaps for interns or certain contractors due to the 300-user cap and limited functionality.
  • Microsoft 365 Business Standard: Adds desktop Office apps to what Basic offers. Users can install Word, Excel, PowerPoint, Outlook, etc., on their devices (up to 5 devices per user), just like an E3 user, and they get 1 TB of OneDrive and 50 GB of email. However, Business Standard does not include advanced security or device management beyond the basics (no Azure AD Premium or Intune โ€“ it relies on standard security in Office 365). Price: $12.50 per user/month. This plan mirrors many Office 365 E3 capabilities but is only for <300 seats and lacks enterprise-level security/compliance tools.
  • Microsoft 365 Business Premium: The most comprehensive SMB plan, combining Business Standardโ€™s full Office suite with advanced security and device management (in a way, itโ€™s like a mini-E5 tailored to SMB). Business Premium includes Azure AD Premium P1, Microsoft Intune for device management, and Microsoft Defender for Business, bringing endpoint protection and threat detection capabilities. It also offers conditional access, built-in MFA enforcement, and other security features crucial for organizations that canโ€™t afford separate security solutions. However, Business Premium still has a 50 GB mailbox (no unlimited archive), 1 TB OneDrive, and it lacks some advanced compliance/analytics found in E5 (e.g., no Power BI, no advanced eDiscovery by default). Price: $22 per user/month. Business Premium is extremely popular for organizations up to 300 users because it provides a cost-effective package: essentially Office 365 E3 + many E5 Security features, at a lower price than an Enterprise E3 license. For enterprises, you cannot assign Business Premium to more than 300 users in one tenant; itโ€™s an option if you have a smaller division or are in the mid-market size. Remember that if you grow beyond 300, youโ€™ll be pushed to migrate to E plans.

Business vs. Enterprise:

Microsoft officially reserves Business plans for up to 300 users (and technically enforces a 300-license limit per plan type). Large organizations with more than 300 employees are advised to use Enterprise plans, though combinations are possible (e.g., 300 users on Business Premium and the rest on E3).

Enterprise plans offer higher capacity and more robust compliance options than Business plans. For example, Exchange Online in E3/E5 can support larger mailboxes and archiving, OneDrive storage can be extended beyond 1 TB for E3/E5 users, and enterprise plans include features like Teams Phone and Power BI integration that Business plans do not.

Moreover, enterprise support, SLAs, and add-on availability might be better with E plans. Enterprise plans are usually the appropriate route if your organization is near or above 300 users or needs advanced functionality. Business Premium can be seen as a subset of E3 + some E5 security, great for a smaller environment, but not scalable indefinitely.

Add-Ons: Extending Your Planโ€™s Capabilities

Beyond the base plans, Microsoft offers a range of add-on licenses that CIOs can use to tailor capabilities.

These can be crucial in selecting a plan strategy โ€“ sometimes itโ€™s more cost-effective to choose a lower plan and add a specific feature, rather than upgrading every user to a higher plan.

Major add-ons include:

  • Microsoft 365 Copilot: A generative AI assistant that integrates across Word, Excel, PowerPoint, Outlook, Teams, and more. Copilot can draft content, summarize documents, analyze data, and answer questions by leveraging organizational data and the web. It is not included in any base plan by default (as of 2025) and must be purchased separately. Pricing: $30 per user/month for the Copilot add-on. It is available for users licensed on Microsoft 365 E3/E5, Business Standard/Premium, Office 365 E3/E5, and even F1/F3. Notably, Microsoft has removed the initial requirement of a 300-seat minimum for Copilot โ€“ even a few users can be enabled. Copilotโ€™s value depends on how much it boosts productivity for your organization โ€“ CIOs should consider piloting it with a subset of users to measure ROI before broad rollout, given the significant additional cost.
  • Microsoft Defender and Security Suites: If you are on an E3 or Business Premium plan and want to enhance security without going full E5, Microsoft offers Microsoft 365 E5 Security as an add-on. This bundle (approx. $12 user/month) includes advanced threat protection components: Defender for Endpoint (endpoint detection & response), Defender for Office 365 Plan 2 (advanced phishing & malware protection, attack simulation), Defender for Identity, and Azure AD Premium P2 (identity protection & governance). Essentially, it brings most of the E5 security capabilities onto an E3 or Business Premium user. This can be a cost-efficient way to uplift security for specific users or the whole org if E5โ€™s other features (analytics, voice, etc.) are unnecessary. Similarly, Microsoft 365 E5 Compliance ($12 user/month) can be added to E3/Business Premium to get the advanced compliance features of E5 (advanced audit, eDiscovery Premium, Customer Key encryption, etc.). These add-ons allow a la carte improvement in security or compliance posture without fully upgrading every user to E5. For example, a healthcare company could keep E3 as its base license but add E5 Compliance for legal and compliance teams to handle eDiscovery and audit requirements, saving money vs. giving E5 to all users.
  • Microsoft Viva Suite: Microsoft Viva is a modular employee experience platform with tools for communications, knowledge, learning, goals, and well-being. Some base Viva features (like Viva Connections and a basic form of Viva Engage) are free with any Microsoft 365 plan, but the premium modules require licenses. You can either buy modules ร  la carte (e.g., Viva Insights, Viva Learning, Viva Goals, Viva Topics, each costs a few dollars per user/month) or theย Viva Suite,ย which bundles all modules for aroundย $9โ€“12 per user/monthย (often around $12). These are add-ons on top of your base plan. Large organizations interested in improving employee engagement, especially across distributed teams, may consider Viva. However, costs can add up, so evaluate which specific modules (if any) deliver value. Piloting one or two modules (for instance, Viva Learning for training or Viva Insights for managerial analytics) is common before deciding on the full suite.
  • Teams Phone and Audio Conferencing: If you want to enable telephony (PBX) features in Microsoft Teams for users (making/receiving calls to external phone numbers), you need additional licensing. The team’s Phone Systemย is in Microsoft 365 E5 by default; E1/E3 users can access it via an add-on (often called theย โ€œTeams Phone Standardโ€ license). Likewise, Audio Conferencing (dial-in numbers for Teams meetings) is included in E5 and can be added to E3/E1 if required. Microsoft often offers an Audio Conferencing add-on at no extra cost for enterprise agreements, but this can vary. When selecting plans, consider if telephony is in scope โ€“ if yes, E5 includes it natively, otherwise budget for the add-on with E3 or plan a third-party calling solution. (Note that call minutes or phone lines require separate Calling Plans or Direct Routing solutions beyond just these licenses.)
  • Power Platform and Others: Other add-ons might be relevant depending on business needs. Power BI Pro is included in E5; E3 users can purchase Power BI Pro standalone (~$10 user/month) if analytics dashboards are needed for some. Microsoft Project and Visio have subscription plans that can be added per user. Microsoft Syntex (AI-enhanced content processing) and Microsoft Priva (privacy risk management) are newer add-ons for specialized use cases in content management and privacy, respectively. The key is that the Microsoft 365 ecosystem is modular โ€“ the base license gives you core capabilities, and you can extend via add-ons rather than upgrading the base license for everyone.

In summary, enterprise plans scale up in features and cost from E1 to E5, frontline plans tailor those features for deskless workers with lower price points, and business plans offer small organizations bundles up to a 300-user limit.

Add-ons allow you to mix and match capabilities beyond the base plan. Next, weโ€™ll discuss how to assess your organizationโ€™s needs to choose among these options.

Assessing Business Needs and Usage Patterns

Selecting the right plan starts with a clear-eyed assessment of your business requirements and usage patterns. A plan should neither leave important needs unmet nor pay for unused bells and whistles. CIOs should undertake the following steps and considerations:

1. Profile Your Workforce:

Break down your users into categories such as information workers (desk-based knowledge workers), frontline workers (field or customer-facing staff), and specialized roles (executives, developers, etc.).

Determine roughly how many users fall into each category and how they work. For example:

  • Do most users create and edit content heavily (requiring desktop Office apps and large storage)? Or do they primarily consume information and communicate (perhaps web apps suffice)?
  • Are there teams that rarely use email or Office, but need Teams for messaging (common for frontline scenarios)?
  • Identify if some roles share devices or occasionally need corporate IT services (potential for kiosk or F1 licensing).

2. Inventory Required Services:

List the services and capabilities that are must-haves for your organization. Consider:

  • Email and Calendar: Nearly all organizations need Exchange email. How big are typical mailboxes? Heavy email users (e.g., in legal or consulting) might need the unlimited archive and larger mailbox of E3/E5, while 50 GB (E1/Business) may suffice for others.
  • Office Applications: Determine if users need the full desktop Office suite. If employees need offline access, advanced Excel macros, or handling large documents, desktop apps (E3 and above) are essential. If users work always connected and only do basic editing, perhaps web apps (E1) could suffice for a subset. In practice, most mid-to-large enterprises find that at least their core staff need desktop Office for productivity.
  • Collaboration Tools: Microsoft Teams is a linchpin for many organizations. Ensure the plan supports the kind of collaboration required: e.g., Teams with meetings, screen sharing, recording, etc. (E1/E3/E5 all include robust Teams for internal use; F plans support Teams but may have limits such as smaller meeting attendee capacities or read-only features). Also, consider the SharePoint and OneDrive needs for content sharing.
  • Device Management & OS: If you want centralized device management (mobile device management, app pushing, conditional access), note that Intune is included with Microsoft 365 E3/E5 and Business Premium. If youโ€™re not on those, you might need to buy Intune separately or forego that capability. Additionally, if your users need to upgrade Windows Pro to Enterprise or use virtual desktop infrastructure, having Windows Enterprise rights (included in M365 E3/E5/F3) is important.
  • Security Requirements: This is a major area. Identify must-haves like Multi-Factor Authentication (MFA), which is available even in basic plans via security defaults, but more advanced needs โ€“ Single Sign-On, Conditional Access policies, Identity Protection (requiring Azure AD P2), endpoint detection and response, threat analytics, etc. โ€“ come with higher plans or add-ons. If your company has experienced security incidents or has a proactive security stance, leaning toward E5 or E5 Security add-on for E3 users might be justified. On the other hand, if you already invest in third-party security tools (firewalls, email filters, endpoint security software), you might decide that the built-in advanced security of E5 is overlapping, and E3 is sufficient while continuing with third-party solutions.
  • Compliance and Regulatory: Assess your data protection and compliance obligations. For instance, are you in healthcare (HIPAA), finance (SEC, SOX), government contracting (CMMC), or under GDPR? These often demand capabilities like long-term retention, eDiscovery, audit logs, data loss prevention, and encryption. E3 provides a compliance baseline (e.g., eDiscovery Standard, DLP for documents/email, basic audit logs). E5 provides advanced tools (eDiscovery Premium with AI-assisted content search, Audit log retention for 1 year, Customer Key for encryption, Insider Risk Management, etc.). If regulatory compliance is a major driver, you may need those E5-level tools or add E5 Compliance to E3. Map out which compliance features are mandatory for you and see which plan includes them.
  • Voice and Communication Needs: Does your business plan to use Microsoft Teams as a phone system (replacing PBX)? If yes, consider E5 or budgeting for the Phone System add-on. Do you need every user to be able to dial into meetings by phone or host large webinars? These features are enhanced in E5 (audio conferencing for up to 1,000 attendees, Teams Live Events, etc.). If your workforce still uses traditional telephony or another VoIP provider, you might not need the Teams telephony features and can stick with E3/E1.
  • Emerging Needs (AI, Analytics): Consider if tools like Power BI or Microsoftโ€™s AI capabilities (Copilot) will likely play a role. If data analytics for many users is important, having Power BI Pro included via E5 or purchasing it separately needs to be considered in the cost analysis. If AI automation appeals, remember itโ€™s an add-on cost that could apply to either plan.

Listing these service requirements and their importance will help you better determine your minimum plan level.

3. Analyze Current Usage Patterns:

If you are already on Microsoft 365 (or another platform), audit how your users use their tools. Itโ€™s common to find that some users rarely use certain features. For example, if you have E5 today, perhaps only a subset are using Power BI or Advanced Threat Protection features โ€“ could those users be targeted for a higher plan while others drop to E3? On the flip side, you might discover pockets of under-licensed users (e.g., some users on E1 have a business need for full Office apps and are frustrated without them). Use telemetry from Microsoft 365 Admin Center or reports from your IT team to gauge:

  • Average storage used (mail and OneDrive) per user.
  • How many users have opened Office desktop apps vs. using only a browser?
  • Security incidents or compromised accounts traceable to users without advanced protections.
  • Feedback from departments: For example, the finance team desperately needs better data analysis (Power BI), a customer-facing team needs a phone dial-in for meetings, etc.

Understanding usage ensures you donโ€™t over-invest or leave gaps. For instance, a manufacturing company might realize that 70% of its employees work on the factory floor and primarily use shared kiosks to check schedules and shifts. These could be moved to F3 licenses, while the remaining 30% in offices keep E3, resulting in huge savings with minimal impact on productivity. Alternatively, a law firm might see that although they gave everyone E3, only the compliance officer uses eDiscovery features heavily. If they face increasing litigation needs, upgrading a few people to E5 or getting the compliance add-on is warranted.

4. Future-Proofing and Scalability: A plan decision isnโ€™t just about today โ€“ consider the next 3-5 years:

  • Organization Growth: If you are nearing 250-300 users on Business Premium, plan to eventually move to Enterprise (or at least know the consequences of exceeding the cap). The transition from Business to Enterprise plans can be managed, but it requires planning (mailbox sizes, device relicensing, etc.).
  • Global Expansion: If your company is expanding geographically, enterprise plans offer add-ons like Multi-Geo Capabilities (to store data in multiple regional data centers for data residency requirements). Multi-Geo is only available with E3/E5 in larger tenant scenarios. Industry-specific clouds (like Microsoft 365 Government GCC or Microsoft 365 for Healthcare add-ons) might also influence plan choice if you move to those environments.
  • Technology Roadmap:ย If adopting Zero Trust security architecture, moving to cloud voice, or incorporating AI are on the roadmap, lean towards plans that wonโ€™t be a blocker. It may be cheaper to select a higher plan now that includes these capabilities rather than running separate projects to bolt them on later. That said, avoid assuming โ€œwe might need this, so buy for everyoneโ€ without a timeline and adoption plans โ€“ many E5 features can be added later via add-ons or upgrades when the organization is ready to use them.

5. Independent Needs Assessment: Engaging anย independent consultant or licensing expertย to perform a needs assessment can be beneficial. They can conduct interviews with department heads, analyze license utilization reports, and help match business needs to Microsoftโ€™s offerings without the conflict of selling you more than necessary.

This is akin to how Gartner or other advisory firms would approach it โ€“ an unbiased analysis first, then mapping to solutions.

Once you have a clear picture of your needs, you can match those to specific plans or combinations. The next section will directly link common scenarios by industry and organization type to recommended plan choices.

Matching Plans to Industry and Organization Size

Different industries and business types have distinct requirements. Below, we outline typical scenarios and which Microsoft 365 plan (or mix of plans) often aligns best.

These are general guidelines โ€“ every organization is unique, but industry norms can provide a starting point.

  • Highly Regulated Industries (Finance, Healthcare, Legal, Government): Organizations in banking, insurance, hospitals, pharma, large law firms, and the public sector handle sensitive data and strict regulations. Microsoft 365 E5 is often favored here for its top-tier security and compliance. For example, a bank dealing with frequent cyber threats and compliance audits may deploy E5 to get Defenderโ€™s advanced threat protection across all endpoints and Purviewโ€™s auditing and DLP to meet regulatory requirements. Healthcare providers require HIPAA compliance โ€“ Microsoft 365 can be configured for HIPAA on any plan by signing a BAA, but E5โ€™s advanced auditing and Customer Key encryption could add extra assurance. If full E5 for all users is too costly, a split licensing approach is common: core users (like traders in a financial firm or doctors in a hospital) get E5, while back-office staff get E3. Industry example: A regional bank might license E5 for its cybersecurity team and compliance officers to leverage insider risk management and advanced eDiscovery, while giving E3 to branch office staff who mostly need Office and email. The key for regulated industries is not to skimp on needed security/compliance โ€“ the cost of a breach or violation far exceeds license costs. Also consider anyย Government Community Cloud (GCC)ย or industry cloud requirements โ€“ e.g., U.S. government contractors might need GCC High, which has E3/E5 equivalents but in a sovereign environment.
  • Enterprise IT and Tech Firms: Tech companies or IT-driven enterprises often value flexibility and cutting-edge tools, but may also have engineers using specialized non-Microsoft tools. They might lean towards E3 as a base for most users, because developers and knowledge workers benefit from full Office apps and collaboration. Still, they might use alternative solutions like code repositories or analytics. Security is still important, but some tech companies layer their security stack, making E5โ€™s additions less essential. However, many tech firms are early adopters of things like Copilot โ€“ so they ensure at least the plans that support it (E3/E5) and then add Copilot for relevant teams (like product management or sales content creators). Also, tech companies might use Power Platform heavily for internal apps โ€“ E3 suffices here as those can be bought as needed. Example: A 500-person software company uses E3 for all staff to get Office and Intune for device management. It adds E5 Security for the IT team, plus a handful of E5 licenses for data scientists needing Power BI Pro and advanced analytics. They keep overall costs moderate while equipping specialist roles with high-end tools.
  • Manufacturing & Logistics: This sector has a mix of corporate offices and a large frontline workforce (factory workers, warehouse staff, drivers). Microsoft 365 F3 is very popular for the frontline component โ€“ workers can clock in via Teams, access training materials on SharePoint, and communicate with supervisors, all through low-cost licenses on shared tablets or their mobile devices. For the office staff (engineers, managers, etc.), E3 is generally sufficient. Suppose IP protection is crucial (e.g., protecting trade secrets in manufacturing designs). In that case, E3โ€™s information protection may be enough, but some companies add Azure Information Protection P2 (part of E5) to classify and track sensitive files. Manufacturing firms often use third-party or on-premise systems for operations, which might not integrate with Microsoft 365 โ€“ ensure the plan doesnโ€™t force you to pay for features you wonโ€™t utilize (for example, if using Zoom or Cisco for meetings in factories, you might not utilize Teams telephony). Example: A car manufacturer licenses 5,000 F3 licenses for factory and retail showroom staff (enabling basic email/Teams on shared devices) and 500 E3 licenses for engineers, designers, and HQ staff. They also purchase a few dozen E5 licenses for the security operations team to monitor threats with Defender. This blend addresses each groupโ€™s needs cost-effectively.
  • Retail and Hospitality: Like manufacturing, these industries have many frontline employees (store clerks, hotel staff, restaurant employees) who benefit from F1 or F3 plans. Microsoft 365 F1 can suffice if workers must check schedules and receive announcements. For instance, F3 is used if you want store managers to use Office web apps for reporting. Corporate employees in these companies (marketing, corporate management) typically use E3. Itโ€™s less common for these industries to use E5 universally, unless the company is very large and concerned about centralized security for all locations. Instead, they might invest in specialized retail technology and keep Microsoft licensing lean. Example: A retail chain with 10,000 employees gives F1 to most hourly store employees (so they can access the corporate intranet and Teams for shift communications) and F3 to store managers (who edit Excel inventory sheets online). Headquarters staff (HR, finance) get E3. The company ensures compliance by training store managers on data handling rather than buying E5, since they donโ€™t handle high-risk data outside of HQ. Here, cost savings are prioritized while still providing essential communication tools.
  • Education and Nonprofit: (While not the main focus of this playbook, itโ€™s worth mentioning.) Educational institutions own A1/A3/A5 licensing, and nonprofits receive significant discounts (and some free E1 equivalents). CIOs in those sectors should refer to specialized plans. Still, if choosing enterprise SKUs, they often mirror government/regulated needs or cost-saving needs, depending on whether itโ€™s a research university (which might need E5 for data protection) or a small nonprofit (which might use mostly Business Premium to maximize donated licenses).

Organization Size Considerations:

  • Small and Medium Businesses (SMB, <300 employees): Likely to go with Business Basic/Standard/Premium rather than E plans, simply due to cost efficiency. Business Premium is often the top choice as it covers security needs at a good price point for SMBs. If an SMB is approaching the 300-user mark or has ambitious growth plans, it might preemptively choose E3 to avoid a future migration.
  • Mid-market (300-1000 users): This is a gray zone where some mid-sized orgs combine Business and Enterprise plans. For instance, a 500-person company could technically assign 300 users Business Premium and 200 users E3 to save money on those first 300. Microsoft currently allows this mix (300 per plan type), though they reserve the right to enforce a strict 300 cap on all Business plans in a tenant in the future. The administrative overhead of mixing plans (and ensuring feature parity) should be considered. Often, by 500+ users, many organizations standardize on E3 for simplicity, but each case varies.
  • Large Enterprises (1000+): Almost always on E3/E5 mix. At this scale, enterprises might segment licensing by user personas: e.g., Persona-based licensing โ€“ executives on E5 (for the highest security and analytics), knowledge workers on E3, contractors or part-timers on E1 or F3 as appropriate. The complexity of managing thousands of user licenses makes it important to have a clear policy for who gets what and to revisit it periodically.

Global Regions and Data Residency: Microsoft 365 is available globally, and all these plans can be used in any region (with pricing varying slightly by local currency). If your industry or company policies require data residency in certain countries (e.g., a European firm under GDPR wanting EU-only data storage), Microsoft 365 can accommodate that with region-specific tenants or multi-geo add-ons for E plans.

Additionally, some countries have specific requirements (for example, Germany had a special datacenter option, China operates via 21Vianet for Office 365). Ensure your plan choice aligns with any regional needs โ€“ sometimes, certain add-ons like Power BI might store data in a particular region, or you might need to consider

Microsoftโ€™s government or sovereign clouds operate in a regulated public sector in specific nations. These factors donโ€™t usually change which plan tier you choose, but how you deploy it (e.g., using a GCC version of E3 vs. commercial E3). Always confirm that the plan you select can be delivered in compliance with local laws (e.g., data localization mandates in finance or telecom sectors).

In matching plans to your industry and size, use these patterns as a reference, not a rulebook. Many enterprises adopt a tiered licensing strategy: for example, โ€œ80% of our users will be on E3, 15% on F3 (frontline and limited users), 5% on E5 (high-need users).โ€

This kind of split often maximizes value and minimizes cost, but it requires careful management and communication so that everyone understands which features they have access to. Next, weโ€™ll outline key questions CIOs should ask to refine their decision-making process.

Key Questions CIOs Should Ask Before Deciding

Before finalizing your Microsoft 365 plan selection, itโ€™s wise to investigate the decision with critical questions.

Here are key questions CIOs and IT decision-makers should ask:

  • โ€œWhat are our must-have capabilities versus nice-to-have features?โ€ โ€“ Identify non-negotiables like compliance requirements, specific apps, or uptime needs. For instance, desktop apps (E3/E5) are necessary if on-premises Office isn’t an option. If advanced threat protection is currently lacking and causing incidents, that might be a must-have, pushing toward E5 or E5 Security add-on. Nice-to-haves (like Power BI for all users, or Teams Phone for all) can be phased in or given to specific groups; they shouldnโ€™t solely determine the base plan choice without a clear use case.
  • โ€œAre we fully utilizing our current licenses?โ€ โ€“ If you already have Microsoft 365, look at usage analytics. Perhaps you are considering E5 because it sounds good, but your E3 environment shows minimal exploitation of even E3โ€™s security features. Conversely, maybe users are bumping into E3โ€™s limits (e.g., running out of storage, or wanting features that say โ€œrequires E5โ€). A license optimization review can reveal whether upgrading or downgrading makes sense.
  • โ€œCan different segments of our workforce be on different plans without hindering collaboration?โ€ โ€“ Microsoft allows mixing plan types in the same tenant. A question is whether doing so will introduce complexity in user experience or admin overhead. For example, if 20% of employees are on E5 and have access to a certain feature (like creating Power BI reports or Advanced eDiscovery) and others donโ€™t, will that cause friction? Often, itโ€™s manageable (most core collaboration, like emailing, editing documents, and Teams meetings, work fine across license types), but ensure no critical workflow assumes everyone has the higher-tier capabilities.
  • โ€œHow will this decision impact our IT management and support?โ€ โ€“ Higher-tier plans bring more tools, which can mean more management (e.g., E5โ€™s security tools might require your IT security team to have expertise to configure and monitor them). If you choose E5, do you have the resources to fully utilize those advanced features? If not, you might pay for E5 and only use it like E3. Conversely, if you choose a lower plan, are you prepared to manage third-party solutions to fill gaps (which can increase support complexity)? The CIO should ensure the IT team is ready for whichever path, either leveraging Microsoft 365โ€™s advanced suite or integrating other tools.
  • โ€œWhat is our plan for training and adoption of features?โ€ โ€“ Buying a premium plan like E5 is not the end; users must use the features to realize value. Ask how you will roll out new capabilities: e.g., Will you actively use Teams Phone if you have it? Are you going to train users to use Purview compliance portals? If considering Copilot, how will you drive adoption? Sometimes the answer might require organizational change (and cost) beyond the licenses themselves.
  • โ€œDo we have any external constraints or contract considerations?โ€ โ€“ If you are under a Microsoft Enterprise Agreement (EA), your pricing and options might be influenced. Also consider timing โ€“ if your EA is renewing soon, you might have room to negotiate if you plan to increase your license spend (or conversely, if downsizing licenses, plan how to adjust without penalties). Additionally, some industries might require certain data handling (e.g., client contracts may require enhanced encryption, an E5 feature). Ensure your plan meets those commitments.
  • โ€œWhat is our budget over the next 3-5 years for user productivity and security tools?โ€ โ€“ Look at licensing as part of a bigger IT budget. Perhaps E5 seems expensive, but it could be cost-effective if it consolidates several tools (email security, endpoint security, DLP, etc.) that you would otherwise buy separately. Ask if a Microsoft-first strategy (E5-centric) or a best-of-breed strategy (E3 + third-party tools) fits your budget and philosophy. Also factor in expected Microsoft price increases โ€“ historically, Microsoft has raised prices or adjusted packaging every few years. Are you comfortable with potential increases on a higher base price? Scenario-plan the costs: โ€œIf Microsoft raises prices 10% in two years, what is the impact if we have 2000 E5 users vs 2000 E3 users with add-ons?โ€
  • โ€œHow easily can we change course if needed?โ€ โ€“ CIOs should know the flexibility: If you pick E3 now, can you upgrade to E5 mid-term for some or all users? (Microsoft allows upgrades and pro-rated adjustments, especially under CSP or EA licensing programs.) If you over-provision, can you downgrade licenses without penalty? (Under annual commitments, you may have to wait until renewal or pay a penalty; monthly subscription gives more flexibility at a higher cost). Ensuring you have an exit or change strategy will make you more confident in your choice. For instance, you might decide: โ€œWeโ€™ll start with E3, and if our planned security initiative gets funding next year, weโ€™ll upgrade to E5 or add E5 Security.โ€ Communicate with Microsoft or your licensing partner about terms for such changes.

By asking these questions, CIOs can validate whether the choice theyโ€™re leaning toward truly aligns with business realities. The answers often highlight if more internal discussion is needed or itโ€™s time to consult a licensing specialist.

Document the rationale for whichever plan you choose โ€“ this will help justify the decision to executives or finance (especially if choosing a higher-cost plan) and set success criteria (e.g. โ€œwe chose E5 because we expect to reduce third-party security spend by Xโ€ or โ€œwe chose E3 because we determined only 5% of users would utilize E5 features, and we will address those via add-onsโ€).

Now, letโ€™s delve into cost analysis and strategies to optimize licensing costs, since budget is usually a major factor in these decisions.

Cost Analysis and Licensing Optimization Tactics

One of the CIOโ€™s primary responsibilities is to ensure the chosen licensing is cost-effective. Microsoft 365 is a subscription model, so small per-user cost differences scale up significantly in large enterprises.

Here, we analyze the costs of the major plans and share tactics to optimize licensing spend:

Understanding Price Points (as of 2025): Rough baseline prices (per user per month, annual commitment) for reference:

  • M365 E1 โ‰ˆ $10; M365 E3 โ‰ˆ $36; M365 E5 โ‰ˆ $57.
  • M365 F1 โ‰ˆ $2.25; M365 F3 โ‰ˆ $8.
  • Business Basic $6; Business Standard $12.50; Business Premium $22.

Enterprise plan costs have increased by 10-25% in recent years, due to new capabilities (and the separation of Teams in pricing). Always check the latest prices in your region, as Microsoft pricing can change or have promotions.

E5 is about 1.5x the cost of E3, which is ~3- 4x the cost of E1. This large delta means selecting E5 across the board could drastically increase your IT budget.

Still, it could be justified if it replaces other expenditures (e.g., eliminating separate security software licenses or reducing risk).

Licensing Optimization Strategies:

  • Mix and Match License Levels: You do not have to give everyone the same license. A common cost-saving tactic is a tiered model: e.g., 70% E3, 30% E5, or similar. Another example: a company might identify 100 users (out of 1000) that truly benefit from E5โ€™s extras โ€“ those 100 get E5, the rest remain on E3. This saves 900 * $21 = $18,900 per month compared to full E5 (using the price gap of $57 vs $36). Over a year, thatโ€™s >$226k saved, which can fund other projects. The key is carefully identifying who needs what (use the needs assessment and usage data). Microsoft 365 admin center makes assigning different licenses to different users straightforward. Just be cautious to maintain at least a base level of capability for all โ€“ you donโ€™t want morale issues if some staff feel they have an inferior toolset without good reason. Communicate that itโ€™s based on role needs, not individual value.
  • Leverage Frontline (F) Plans for Appropriate Users: Frontline licenses are dramatically cheaper than E licenses. If you have groups of employees who donโ€™t need a full productivity suite or have only occasional digital engagement, moving them to F3 or F1 can slash costs. For instance, replacing an E3 ($36) with an F3 ($8) for 500 users would save about $140k annually. However, be mindful of the limitations (the userโ€™s mailbox will shrink to 2GB without desktop apps, etc.). This tactic often works for roles like shop floor supervisors, call center reps (who mainly use a separate CRM and just need email/Teams), or temporary staff. It effectively rightsizes the license to the job function. If you make such downgrades, monitor that itโ€™s truly meeting their needs โ€“ e.g., ensure those users have alternative ways to do things they lost (maybe they donโ€™t need Outlook because all communication is through a different system or Teams). When done right, this is a highly effective optimization, and Microsoft has specifically designed F plans to serve this purpose.
  • Consider Microsoft 365 Business Premium for Smaller Enterprises: If your organization is on the cusp of enterprise size (just at or above 300 users), compare the costs and features of Business Premium and E3. Business Premium at $22 has many E3-equivalent features and some E5 security features, at significantly lower cost than E3 ($36). For 250 users, the annual difference of $14 per user is $42k/year โ€“ not trivial. Some companies with ~400 users create two tenants or use a workaround to utilize Business Premium for 300 and E3 for the rest. Be careful: Microsoftโ€™s licensing agreement formally doesnโ€™t allow splitting tenants to avoid limits, and managing multiple tenants has complexities (separate directories, no unified Global Address List, etc.). A safer approach could be: keep 300 on Business Premium and 100 on E3 in the same tenant (which Microsoft currently seems to allow per plan type). The downside is that those 100 might not have some security features the 300 have (since Business Premium now even has some features E3 doesnโ€™t, like Defender for Business). If you find yourself doing contortions to save money this way, it might indicate your scale has reached true enterprise level, where standardizing on E3 is simpler. However, for an organization of 200 or 250 users, Business Premium is usually the optimal choice economically.
  • Use Add-On Suites Instead of Full Upgrades: As introduced, if you mainly need either security or compliance features of E5 but not the whole package, consider E5 Security or E5 Compliance add-ons for your E3 users. At around $12/user each, even buying both still costs ~$24 on top of E3 (making it ~$60 total, nearly the E5 price, so usually youโ€™d pick one focus). Many organizations choose the E3 + E5 Security add-on as an alternative to E5. This provides all the critical advanced security at $36+$12 = $48, which is less than $57 for full E5, and they forego things like audio conferencing, Power BI, etc., if not needed. Microsoft also sellsย โ€œE5 Information Protection & Governanceโ€ย and other mini-add-ons targeting specific features โ€“ these can be applied only to those who need them (e.g., give an Info Protection add-on just to the legal team for advanced encryption needs). This granular approach ensures you pay only for required enhancements. Work with an independent licensing expert or reseller who can outline these modular options โ€“ Microsoftโ€™s lineup can be confusing, but itโ€™s financially rewarding to navigate it correctly.
  • Annual Commitment vs. Monthly and Contract Terms: Microsoftโ€™s New Commerce Experience (NCE) licensing model imposes a ~20% premium for month-to-month subscriptions instead of annual locked plans. If you have a stable headcount and plan usage, commit annually to the lower price. Only opt for monthly term licenses for truly flexible needs (e.g., temporary contractors for 2-3 months) or if you are piloting something short-term. Additionally, enterprise agreements often lock pricing for 3 years, which can protect against increases. Negotiate multi-year agreements if you are confident in long-term needs โ€“ in exchange for predictability, you might secure discounts or at least avoid hikes. Just be careful not to overcommit licenses in an EA (you typically can increase but not easily decrease mid-term without penalties).
  • Audit and Reclaim Licenses Regularly: Treat licenses as assets that need managing. People leave the company โ€“ do you promptly remove their license and reassign or reduce the count? Some users may not have used certain services at all โ€“ can you downgrade them? Implement a process every quarter or biannually to review license assignments and usage. Tools and scripts can extract usage data (for example, who hasnโ€™t logged into Teams in 90 days? Who hasnโ€™t opened Office apps?). This might reveal unused licenses that can be eliminated or reallocated. Software asset management (SAM) tools or the Microsoft 365 admin reports are helpful in larger enterprises. If you find a set of E5 licenses unused, you might cut them back at renewal. This continuous optimization can save money year over year.
  • Keep an Eye on Promotions and Bundles: Microsoft occasionally runs promotions (especially for new services like Copilot or during end-of-quarter sales push). Also, if you have other Microsoft products (like Dynamics 365 or Windows 365 Cloud PC), sometimes there are discounted bundles or credits. While the plan decision shouldnโ€™t be purely promotion-driven, once you know what you need, see if any promotions can reduce costs. For example, Microsoft has previously offered free Audio Conferencing add-ons or limited-time discounts on E5 to drive adoption. An independent licensing advisor or a good Microsoft account manager should inform you of these.
  • Evaluate Third-Party Alternatives Critically: A cost analysis often includes โ€œbuy vs. buildโ€ or rather โ€œMicrosoft vs third-partyโ€ deliberations. Maybe you consider using Google Workspace instead of Microsoft 365, or sticking with on-prem Office. Those are valid strategic questions, but if youโ€™re reading this playbook, youโ€™re likely set on Microsoft 365 and optimizing within it. However, at the feature level, you might consider third-party solutions for specific needs (e.g., Zoom for meetings, Box for storage, Okta for identity). Using third-party tools can sometimes allow you to use a lower Microsoft plan (since youโ€™re not using Microsoftโ€™s full feature set). But beware: licensing overlaps can become more expensive. For example, paying for Okta while you already have Azure AD Premium in E3/E5, or paying for CrowdStrike while you have Defender. You might have very good reasons (best-of-breed functionality, existing contracts, etc.). The advice is to periodically reassess if third-party subscriptions are still needed, given what your Microsoft plan includes. It might be more cost-effective to consolidate on Microsoft (if their features meet your needs sufficiently) or, vice versa, drop to a cheaper Microsoft plan and let the third-party tool handle that domain. Align your spending with what provides the best value and user experience.
  • License Reassignment for Seasonal Needs: If your business has seasonal workforce changes (for example, retail hiring surges in holidays, or project-based contractors), leverage the ability to scale licenses up and down. Under annual plans, you can increase seats any time and then reduce at renewal; under CSP, you might have some monthly flexibility. Plan the timing: maybe assign higher licenses only during the months needed (Copilot for a team only during a big project, then remove it). Or rotate a limited number of E5 licenses among users, quarter by quarter, for training/auditing purposes, rather than everyone at once. While each user needing certain features generally needs their license concurrently, some organizations creatively manage a pool of special licenses for ad-hoc use (keeping in mind that compliance requires licenses for anyone regularly using features โ€“ donโ€™t violate terms by pirating one license among many simultaneous users).
  • Engage in Vendor Negotiations with Data: When it comes time to renew or purchase, come armed with data โ€“ your internal usage data and competitive pricing intelligence. Microsoft (or their resellers) can provide discounts, especially if youโ€™re increasing your commitment or considering E5 upgrades. Getting quotes from multiple sources (direct vs. CSP partners) and leveraging applicable enterprise discount programs can yield savings. Ensure you involve procurement or a licensing specialist to negotiate the best deal. Having documented โ€œwe have X users who will use feature Yโ€ can sometimes get you concessions, because it shows youโ€™ve done homework and could walk away from unneeded parts.

Real-World Cost Optimization Example:

A global manufacturing company with 8,000 employees was on Office 365 E3 for all, but after analysis, they realized 3,000 were factory and field workers who only used email and Teams occasionally. The CIO led a project to move those 3,000 to Microsoft 365 F3.

They kept 4,500 users on Microsoft 365 E3 and upgraded 500 users (executives, R&D heads) to Microsoft 365 E5 for advanced security due to targeted cyber threats in their industry.

This reallocation saved them nearly 20% on licensing costs annually, which amounted to several hundred thousand dollars. It alsoย improvedย security for the high-risk group while still meeting the needs of frontline staff.

The savings were reinvested in further security training and an independent audit program, multiplying the value of the license decisions. This example underscores understanding usage and adjusting license levels can unlock significant value.

In contrast, a financial services firm with 1,200 users moved everyone to E5, consolidating many separate tools. Their analysis showed that paying ~$21 more per user for E5 was offset by eliminating multiple other vendor contracts (legacy PBX maintenance, a cloud app security broker, a separate mobile threat system, etc.).

They negotiated a slight discount with Microsoft for the volume increase. Post-migration, their CIO reported simpler management (one ecosystem) and projected net savings in the second year after initial transition costs.

The takeaway is that cost optimization doesnโ€™t always mean choosing the cheapest license; it means getting the most value for your spending. Sometimes, that means trading up to a higher bundle for overall cost efficiency.

Practical Recommendations and Next Steps

Choosing and implementing the right Microsoft 365 plan is a strategic decision.

Here are practical recommendations and clear takeaways for CIOs and their teams as they finalize their plan selection and move toward deployment:

1. Develop a License Strategy Document:

Synthesize everything into a clear internal policy. Outline which user segments get which licenses and why. Include exception criteria (e.g., โ€œAn employee can be elevated from E3 to E5 if their role changes to include handling confidential dataโ€ฆโ€). This prevents ad-hoc decisions and serves as a reference as your IT and HR teams onboard new employees or shift roles. It also helps to justify the approach to other executives or auditors.

2. Engage Independent Expertise:

Plan to consult with an independent licensing expert or SAM consultant before making major purchases. They can validate your strategy, ensure youโ€™re not missing hidden gotchas, and sometimes identify even more efficient licensing combinations. Importantly, they will provide neutral advice (unlike a sales rep who often aims to upsell). An expert can also assist in negotiating terms with Microsoft or optimizing your existing contract. Their fees are often minor relative to potential savings or cost avoidance in a large enterprise agreement.

3. Pilot Test the Plan (if possible):

Before a wholesale switch, consider a pilot. For example, if a chunk of users is moved to F3, test it with one department of frontline workers for a month โ€“ see if anyone complains about limitations. If upgrading to E5, maybe trial it with your security team and some power users to ensure your IT can handle the new tools and that users see the benefits. Microsoft offers trial licenses for many plans (E5 trial, etc.), which you can leverage. This pilot can de-risk the migration and provide internal case studies. Just be careful to communicate that itโ€™s a test, so pilot users donโ€™t panic about lost features, or others donโ€™t demand the new features before youโ€™re ready.

4. Change Management and Training:

As you implement the new licensing, accompany it with a training and change management plan. For instance, if users are moving from desktop Outlook to using Outlook Web (as might happen going from E3 to F3 or E1), tips and training on using the web versions effectively should be provided. If youโ€™re rolling out advanced features in E5 (like Teams Phone or Power BI), provide enablement sessions so those features get adopted. The value of a plan is only realized if users use the features. Allocate part of your project to user communication: highlight new capabilities they will gain (or even limitations if you remove some โ€“ frame it in the context of why and what alternatives they have).

5. Monitor Post-Deployment Usage and Satisfaction:

After making a change, closely monitor technical metrics and collect feedback. If you downgraded licenses to save cost, ensure itโ€™s not inadvertently hampering productivity (e.g., helpdesk tickets going up because someone lost an application). If you upgraded, ensure users leverage the new tools (e.g., track how many are using Defender dashboards or creating Power BI reports). Schedule a 3-6 month post-change review to evaluate if the plan mix is still appropriate. This iterative approach ensures the licensing continues to align with any evolving business needs and resolves any unforeseen issues.

6. Keep Security and Compliance Configuration Up to Date:

This is especially true for those adopting E5 or security add-ons: simply having licenses doesnโ€™t secure the environment, but configuration and operations do. Ensure your IT security team configures the Defender suite, sets up policies in Purview (if using), and generally operationalizes the tools included in your licenses. Microsoft provides FastTrack services and documentation to help deploy features. Also, ensure you maintain any necessary compliance documentation (if using Microsoftโ€™s HIPAA BAA, sign it; if using Customer Lockbox or data residency controls, set them up accordingly, which might require E5 or add-ons).

7. Plan for License True-ups and Renewals in Advance:

Mark your calendar for when your subscription terms renew (annual or EA renewal) and start the review process 3-6 months prior. Use that time to adjust numbers (scale up/down as needed to avoid overpaying) and evaluate if a different plan makes sense due to new business circumstances. Perhaps in two years, Copilot or other AI might become so core that you decide a higher plan or an add-on for everyone is justified โ€“ budgeting and planning ahead is easier than reacting last-minute. Similarly, watch Microsoftโ€™s roadmap โ€“ new features might shift the value proposition of certain plans (for example, if Microsoft were to add a new module to E5 exclusively, consider if itโ€™s something youโ€™ll need).

8. Foster Vendor-Agnostic Resilience:

While investing in Microsoft 365, ensure youโ€™re not overly locked in without alternatives. Keep data backups (e.g., use a third-party backup for O365 if policy requires) and document processes so that you have leverage or options if Microsoft licensing becomes unfavorable. This doesnโ€™t mean actively preparing to leave the platform (which is unlikely for a committed enterprise), but maintaining good IT governance. That mindset will help you treat Microsoft 365 as what it is โ€“ a service you procure for value โ€“ and keep negotiations and usage aligned to your terms.

9. Stay Informed on Licensing Changes:

Microsoft cloud licensing evolves frequently. Subscribe to Microsoft announcements or licensing blogs. For example, the separation of Teams from E plans in 2024 in certain markets was a notable change; such shifts could impact costs or how you buy (and they often provide new choices). Being aware early allows you to adapt your strategy. Perhaps in the future, Microsoft will introduce an โ€œE7โ€ or new bundles (some have speculated about more AI-inclusive bundles). If that happens, revisit this playbookโ€™s principles with the new info. Having a named licensing specialist on your team or a partner can ensure you get timely updates.

10. Emphasize Value, Not Just Cost, in Communication:

Finally, when presenting the plan selection to stakeholders (CFO, CEO, or IT Steering Committee), frame it around value and risk management. Rather than โ€œwe chose the cheapest optionโ€ or โ€œwe chose the most expensive all-in plan,โ€ highlight how the choice meets business needs, enables productivity, secures the organization, and fits budget constraints.

For instance: โ€œWe will adopt Microsoft 365 E3 for most users to provide robust productivity tools and device management, while using F3 for our retail staff to significantly reduce costs on unused features.

Weโ€™ll elevate our security by adding E5 Security for critical accounts, ensuring top-tier threat protection without fully upgrading all licenses. This tailored approach saves us 15% compared to an all-E5 strategy, while mitigating risks and meeting compliance obligations. We will review this mix yearly with an independent audit to adjust as needed.โ€ This rationale gains buy-in from business leaders and shows that IT prudently aligns technology with business value.

Conclusion

Selecting the right Microsoft 365 enterprise plan balances capabilities, cost, and organizational needs. A CIOโ€™s best decision will come from understanding the business deeply, staying informed on Microsoftโ€™s offerings, and being willing to tailor the approach (not simply taking a one-size-fits-all package).

All major plans โ€“ E1, E3, E5, F1, F3, and Business variants โ€“ have roles to play depending on context. Your chosen path should support your companyโ€™s productivity and innovation without overspending or exposing you to undue risk.

In summary, for most large organizations, a mix of plans yields the best outcome: use top-tier features where they matter most, and economical options where appropriate. Regularly revisit the plan as your organization and Microsoftโ€™s platform evolve.

By following this playbook and leveraging independent advice, CIOs can confidently navigate the Microsoft 365 licensing maze and develop a solution that empowers their enterprise and aligns with strategic goals.

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  • Fredrik Filipsson has 20 years of experience in Oracle license management, including nine years working at Oracle and 11 years as a consultant, assisting major global clients with complex Oracle licensing issues. Before his work in Oracle licensing, he gained valuable expertise in IBM, SAP, and Salesforce licensing through his time at IBM. In addition, Fredrik has played a leading role in AI initiatives and is a successful entrepreneur, co-founding Redress Compliance and several other companies.

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