Symptoms

C2C agent tries to apply a protection plan to O365 mailboxes, Sharepoint, etc.

Activity fails with:

A backup agent error: 'nothing is processed in protection applying'

Cause 1

The alert could appear if there are new resources but they weren't protected when applying the plan, for example when there are new items discovered in Microsoft 365.

Solution 1

To synchronize the changes between Microsoft 365 and Acronis console follow this article

Cause 2

The resource has a long name; it's not possible to protect the site if it's name exceed the maximum length. The current limitation is 186 characters.

Solution 2

In this case, change the name of resources from Microsoft 365 side.