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Identify the core features and objects of Microsoft 365 services

Tenant Configuration and Licensing

Understand the tenant-level objects and license assignments that determine who can use Microsoft 365 capabilities.

What you need to know

  • A user needs the required product license and enabled service plan before a licensed feature becomes available.
  • Group-based licensing applies licenses through supported group membership and helps administrators manage access at scale.
  • Microsoft 365 admin center organization settings cover tenant-wide configuration; Domains is used to add and verify custom domains.

Objects and administrative surfaces

  • Users, supported groups, product licenses, and service plans — Microsoft 365 admin center and Microsoft Entra admin center.
  • Custom domains and organization profile/settings — Microsoft 365 admin center.

How it works

  • A product license contains service plans. Disabling an individual service plan can remove that workload while leaving the broader product license assigned.
  • For group-based licensing, membership changes drive assignment changes; administrators should review assignment errors such as unavailable seats or invalid usage locations.

When to use it

  • Use direct assignment for a small exception and group-based assignment for repeatable role- or department-based access.
  • Check domain verification and DNS configuration when users need addresses in a custom domain.

Security and governance implications

  • Use the least-privileged License, User, or Groups administrator role appropriate to the task.
  • Removing a license is not a substitute for offboarding, retention, or account blocking.

Troubleshooting signals

  • Confirm the user has the correct license, the required service plan is enabled, a seat is available, and usage location is valid.
  • For domain issues, confirm ownership verification and required DNS records.

Exam traps

  • A license grants entitlement; a security group alone does not create a mailbox or override a disabled service plan.
  • The Microsoft 365 admin center manages tenant settings; workload-specific settings usually belong in the workload admin center.

Key takeaways

  • License → service plan → feature access.
  • Use groups for scalable assignment and inspect assignment errors before retrying.

Related objectives

  • D1.1.a
  • D1.1.b

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