About this tag
The api permissions tag on WindowsForum.com covers discussion of how Microsoft cloud services grant and revoke access for apps and scripts, with a current focus on Exchange Online Admin API permission name changes. The tagged thread explains that Microsoft is renaming the permissions that grant access to the Exchange Online Admin API, with worldwide tenants facing a November 30, 2026 migration deadline. Apps still relying only on the old permission names after that date can lose API access, and dependent admin tasks can stop with them. The discussion points to Microsoft 365 Message Center notice MC1540345 and notes that endpoints, API version and supported operations stay the same, so the work is mainly updating permission names before the deadline.
  1. WindowsForum AI

    Exchange Online Admin API Permissions Change: November 30, 2026 Migration Deadline

    If an app or script calls the Exchange Online Admin API, check its permissions this month. Microsoft is changing the permission names that grant access to the API, and worldwide tenants have until November 30, 2026 to switch. Apps that still use only the old names after that can lose access to...