[Window Title]
VEEAM BACKUP FOR MICROSOFT OFFICE 365
[Content]
Connect to Microsoft Graph: Unable to connect to the resource.
Microsoft Azure Active Directory application doesn’t have the required permissions.
[OK].
Welcome to Veeam Community Forums and thanks for posting!
What VBO version you use? The link you provided us with is outdated. Here is an updated one. Could you please give it one more try?
If no success I'd suggest you contact our support team and doublecheck with them if the required permissions are assigned correctly since the error mentions there is an issue with permissions specifically. Please, do not forget to let us know your support case ID.