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168: Policies for Office Apps

Implementation Effort: Medium
User Impact: Low to Medium

Overview​

Microsoft 365 Apps can be configured through several policy paths, including Intune settings catalog, administrative templates, configuration profiles, and in some cases cloud policy service. The right path depends on whether the setting is device-scoped, user-scoped, supported natively in Intune, or part of a more specialized Office management workflow.

For Zero Trust device security, Office policy should focus on reducing macro abuse, controlling risky content behaviors, standardizing sign-in, and protecting application settings that influence data handling and modern authentication.

Implementation Guidance​

Choose the management method intentionally​

  • Prefer the simplest supported management plane for the setting, such as settings catalog or administrative templates, before introducing imported ADMX-backed policy complexity.
  • Use separate policy sets for security hardening, user experience, and app-specific exceptions so teams can change one area without destabilizing the rest.
  • Review whether a user-scoped cloud policy is a better fit than a device policy for roaming Office settings.

Configure the high-value controls​

  • Prioritize controls related to macros, trusted locations, protected view, modern authentication, and sign-in behavior for Microsoft 365 Apps.
  • Pilot Office policy changes with users who rely on add-ins, templates, or legacy automation so compatibility issues are found early.
  • Document any required exceptions for business-critical macros or signed add-ins and review them periodically.

Validate and maintain​

  • Monitor policy application on representative Windows devices and confirm the user or device scope matches the intended behavior.
  • Retire older ADMX imports or duplicated policies when native Intune settings become available.
  • Keep Office hardening aligned with Defender and identity protections rather than managing it as an isolated desktop tuning task.

Reference​