Jul 3, 2013 at 6:58 PM
What happens if you are working offline and don't have an internet connection?
Jul 3, 2013 at 7:22 PM
The plugin is registered "Server Only" so it will not be executed within the outlook client in offline mode. For the time beeing offline the entities have no autonumber.
The plugin triggered if you "go online" while outlook synchronizes your changes back to the CRM server. During the synchronization the entity gets an autonumber assigned. So the only thing that really happens is a little time lag.