According to Microsoft, starting May 2024, new assignments of the ApplicationImpersonation role will be blocked. By February 2025, this permission scope will be completely removed.
As Exchange Web Services (EWS) is going away on October 1, 2026, we recommend migrating from EWS to Graph API. Robin accounts created before September 2023 use EWS.
Who is affected?
Offices using Office 365 who created their account before September 2023 or have not migrated to Graph API.
What’s the difference?
Graph API provides enhanced control over calendar and mailbox access, offering improved security and access options. End users will notice no difference when using Robin.
What permissions do I need?
A Microsoft global admin is required to migrate via Enterprise app. Scopes can be limited via Role Based Access Control (RBAC).
How do I migrate?
Robin has developed a self-service migration assistant to facilitate this transition.