Aug 7, 2026

Office 365 Certification Path 2021: A Guide to Microsoft 365 Credentials

Office 365 Certification Path 2021: A Guide to Microsoft 365 Credentials

In 2021, Microsoft’s certification program focused on job roles and cloud services rather than offering a single “Office 365 certification.” The credentials most relevant to Office 365 had largely moved under the Microsoft 365 name, reflecting the broader mix of productivity, security, device management, and collaboration tools in the platform.

This guide outlines the main certification options available in 2021, who they suited, and how to plan a learning path. Certification names, exams, and requirements can change, so treat this as a historical overview and verify current details with Microsoft before registering.

What happened to the old Office 365 certifications?

Microsoft previously offered certifications such as MCSA: Office 365. These older MCSA, MCSE, and MCSD credentials were retired in 2021, and they are not the recommended route for someone starting a certification journey that year. Microsoft’s newer role-based certifications focused on specific job responsibilities, such as administering Teams, managing messaging, or securing Microsoft 365 environments.

Although the product was commonly called Office 365, Microsoft 365 certifications covered a wider set of services. Depending on the role, that could include Exchange Online, SharePoint, Teams, identity, endpoint management, and security features.

Start with Microsoft 365 Fundamentals

Microsoft 365 Certified: Fundamentals (MS-900)

MS-900 was a useful entry point for learners who wanted to understand Microsoft 365 before choosing a technical specialty. It covered core concepts such as cloud services, Microsoft 365 apps and services, security and compliance, and pricing and support.

This certification was suitable for people new to cloud productivity tools, business professionals who worked with Microsoft 365, and aspiring administrators who wanted a broad foundation. It was a fundamentals credential, not a substitute for hands-on experience or a role-based administrator certification.

Choose a role-based certification path

After building a foundation, candidates could choose a path based on the work they wanted to do. The following certifications were among the relevant options in 2021.

Microsoft 365 Certified: Teams Administrator Associate (MS-700)

The Teams Administrator Associate certification was designed for professionals responsible for configuring, deploying, and managing Microsoft Teams. Its subject areas included Teams settings, meetings and calling, collaboration, and governance.

This path made sense for administrators supporting an organization’s Teams environment or planning to specialize in collaboration and communications.

Microsoft 365 Certified: Messaging Administrator Associate (MS-203)

MS-203 focused on messaging administration, particularly Exchange Online and hybrid messaging environments. Topics included managing mail flow, recipients, permissions, and messaging infrastructure.

It was a natural fit for administrators whose responsibilities centered on email services and Exchange.

Microsoft 365 Certified: Security Administrator Associate (MS-500)

The Security Administrator Associate certification covered security tasks across Microsoft 365. Candidates studied areas such as identity and access, threat protection, information protection, and security management.

This route suited IT professionals who were responsible for protecting Microsoft 365 users, data, and services. Security experience and familiarity with identity concepts were helpful preparation.

Microsoft 365 Certified: Modern Desktop Administrator Associate (MD-100 and MD-101)

The Modern Desktop Administrator Associate path focused on deploying, configuring, protecting, and maintaining Windows devices in an organization. The two exams covered Windows client administration and modern device management, including relevant Microsoft 365 and endpoint-management tools.

It was a good option for desktop support professionals and administrators who managed user devices as part of a Microsoft 365 environment.

Work toward Microsoft 365 Certified: Enterprise Administrator Expert

For experienced administrators seeking a broader credential, Microsoft offered the Microsoft 365 Certified: Enterprise Administrator Expert certification. The path required passing the MS-100 and MS-101 exams, which covered Microsoft 365 services, tenant management, identity, security, compliance, and supporting technologies. Candidates also needed to meet Microsoft’s associate-level prerequisite requirements in effect at the time.

This expert-level path was best suited to professionals who designed, managed, and evaluated Microsoft 365 environments across multiple workloads. It was generally more demanding than a single-product specialty and called for practical experience with enterprise administration.

How to choose your 2021 path

1. New to Microsoft 365: Start with MS-900 to learn the platform’s terminology, services, and core concepts.
2. Focused on collaboration: Consider MS-700 if your work involves administering Microsoft Teams.
3. Focused on email: Consider MS-203 if you manage Exchange Online or hybrid messaging.
4. Focused on security: Consider MS-500 if you protect Microsoft 365 identities, data, and services.
5. Focused on devices: Consider MD-100 and MD-101 if you deploy and manage Windows endpoints.
6. Working across the platform: Build relevant associate-level experience, then review the MS-100 and MS-101 requirements for the Enterprise Administrator Expert path.

Preparation tips

• Check the official exam objectives. Use Microsoft’s published skills outline for the specific exam and version you plan to take.
• Get hands-on practice. Work in a suitable lab or test environment and practice common administration tasks, not just exam questions.
• Connect study topics to real work. Map exam objectives to the tasks you perform or expect to perform on the job.
• Use practice tests carefully. Use them to identify knowledge gaps, and make sure you understand the underlying concepts rather than memorizing answers.
• Confirm exam status and requirements. Microsoft updates certification paths over time, so check the current official certification pages before scheduling an exam.

Conclusion

The Office 365 certification path in 2021 was best understood as a set of Microsoft 365 role-based options rather than one all-purpose Office 365 credential. MS-900 provided a broad introduction, while certifications such as MS-700, MS-203, MS-500, and MD-100/MD-101 developed skills for specific roles. Experienced administrators could also pursue the Enterprise Administrator Expert path.

The right choice depended on the work you wanted to do: collaboration, messaging, security, device management, or administration across the wider Microsoft 365 environment. Since certification programs change, always verify current exam names and requirements before beginning a new path.

Understanding the Office 365 Certification Path in 2021: Key FAQs and Guidance

1. What was the Office 365 certification path in 2021?
2. Did Microsoft offer an Office 365 certification in 2021?
3. What replaced the MCSA
4. Was MS-900 required before pursuing a Microsoft 365 role-based certification?
5. Which 2021 certification was best for Microsoft Teams administrators?
6. Which certification path focused on Exchange Online and messaging administration?
7. What exams were required for the Microsoft 365 Certified
8. How should I prepare for a Microsoft 365 certification exam?
9. Are the Office 365 certification requirements from 2021 still current?

What was the Office 365 certification path in 2021?

In 2021, there wasn’t one certification called “Office 365 certification.” Microsoft’s credentials had shifted to role-based Microsoft 365 certifications. Many candidates began with Microsoft 365 Certified: Fundamentals (MS-900), then chose a specialty such as Teams Administrator Associate (MS-700), Messaging Administrator Associate (MS-203), Security Administrator Associate (MS-500), or Modern Desktop Administrator Associate (MD-100 and MD-101). Experienced administrators could work toward Microsoft 365 Certified: Enterprise Administrator Expert by meeting the applicable prerequisites and passing MS-100 and MS-101. Exam names and requirements have since changed, so check Microsoft’s current certification pages before pursuing a credential.

Did Microsoft offer an Office 365 certification in 2021?

In 2021, Microsoft did not offer a single certification specifically called “Office 365 certification.” Instead, it had role-based Microsoft 365 certifications covering skills such as Teams administration, messaging, security, and modern desktop management. Older Office 365 credentials, including MCSA: Office 365, had been retired, so candidates typically chose a Microsoft 365 certification that matched their job role and experience.

What replaced the MCSA

The MCSA was not replaced by one equivalent certification. Microsoft moved to role-based credentials that validate skills for specific jobs and technologies. For Microsoft 365 professionals in 2021, options included the Microsoft 365 Certified: Enterprise Administrator Expert credential, as well as associate certifications focused on areas such as Teams, messaging, security, and modern desktop administration. The best alternative depended on the role and skills you wanted to demonstrate.

Was MS-900 required before pursuing a Microsoft 365 role-based certification?

No. In 2021, MS-900 (Microsoft 365 Certified: Fundamentals) was a helpful introduction to Microsoft 365, but it was not generally required before pursuing a role-based certification such as Teams Administrator Associate or Messaging Administrator Associate. Candidates could begin with the role-based path that matched their experience and career goals, while checking Microsoft’s specific prerequisites for the certification they planned to earn.

Which 2021 certification was best for Microsoft Teams administrators?

In 2021, the Microsoft 365 Certified: Teams Administrator Associate certification (exam MS-700) was the best fit for professionals who managed Microsoft Teams. It covered configuring and managing Teams, including collaboration, meetings, calling, and governance. Applicants should verify current certification requirements, since Microsoft has updated its exams and credentials since 2021.

Which certification path focused on Exchange Online and messaging administration?

The Microsoft 365 Certified: Messaging Administrator Associate path, which required passing exam MS-203, focused on Exchange Online and messaging administration. It covered tasks such as managing mail flow, recipients, permissions, and hybrid messaging environments.

What exams were required for the Microsoft 365 Certified

If you mean the Microsoft 365 Certified: Enterprise Administrator Expert credential in 2021, candidates had to pass the MS-100 (Microsoft 365 Identity and Services) and MS-101 (Microsoft 365 Mobility and Security) exams, along with earning an eligible associate-level certification, such as Teams Administrator Associate, Messaging Administrator Associate, Security Administrator Associate, or Modern Desktop Administrator Associate. Requirements could vary as Microsoft updated its program, so candidates should check the certification rules that applied when they planned to test.

How should I prepare for a Microsoft 365 certification exam?

To prepare for a Microsoft 365 certification exam, start by reviewing Microsoft’s official exam objectives so you know which skills and topics are covered. Build a study plan around those objectives, use Microsoft Learn and other reputable study materials, and get hands-on practice with the relevant Microsoft 365 tools whenever possible. Practice exams can help identify areas that need more review, but focus on understanding the concepts rather than memorizing answers. Before scheduling your exam, check Microsoft’s certification site for the latest exam details and requirements, as they may have changed since 2021.

Are the Office 365 certification requirements from 2021 still current?

No. The Office 365 certification requirements described for 2021 are historical and may no longer reflect Microsoft’s current exams, prerequisites, or certification names. Microsoft has since updated its role-based certification program, and some exams mentioned in older guides may have been retired or replaced. Before choosing a certification path or scheduling an exam, check Microsoft Learn for the latest requirements and available credentials.