O365_19

Issue

The OneDrive crawler application is missing a Microsoft Graph application permission shown in the validation message. OneDrive requires Files.ReadWrite.All, and Sites.FullControl.All enables faster permission updates.

Without Sites.FullControl.All, permission-only changes in OneDrive can take up to one month to appear in Glean. See the Microsoft Graph delta API documentation for Microsoft's permission hierarchy requirements.

Resolution

Add each Microsoft Graph application permission named in the validation message:

1. Sign in to the Microsoft Entra admin center and open App registrations.
2. Select the crawler application, then go to API permissions.
3. Click Add a permission, select Microsoft Graph, and choose Application permissions.
4. Add each missing permission.
5. Click Grant admin consent.
6. Return to the Glean Admin console and validate the connector again.

For additional assistance, contact Glean Support.