Following error is shown while setting the forwarding against GroupWise user:
"ERROR: [7458-6-4-00000000] Unable to update GroupWise forwarding for user 'User.PO.DOM'"
WaitForSingleObject(WINGRA.GROUPWISE.COMMANDER) timed out.
This can be caused by gwsync.exe running in the background and not allowing Groupwise to close. The tool needs to open and close Groupwise for each user that needs a forwarding rule set and because the Groupwise client did not close, this error occurs. This is seen when auto-archiving is enabled.
Disable autoarchive and remove the archive directory from the Groupwise client on the administrator account that is being used to set the forwarding.