June 16, 2025
To align with Microsoft’s updated security requirements, we’re migrating to nested app authentication (NAA) the week of June 16, 2025.
Why are we migrating: Microsoft will no longer support legacy user tokens later this year. This migration to NAA ensures uninterrupted access to Microsoft services and provides a more secure, modern authentication experience for users.
What does this mean for you: All users will need to reauthenticate their Outlook integration the week of June 16, 2025. More information available at this Help Article.
Environments availability: Commercial US, Commercial EU,
Plan availability: Pro, Business, Enterprise, Advanced Work Management
Subscription Model Availability: Legacy Collaborator Model and User Subscription Model