When attempting to set forwarding form GroupWIse to Exchange for a user the following errors are written to the log file and forwarding is not set:
12:18:04 ERROR: [7458-6-9-00000000] Unable to update GroupWise forwarding for user 'USER.PO.DOMAIN'
12:18:04 Execute(RuleCreate("CAS";"FORWARD TO MIGRATED MAILBOX";185;;315;147)):
12:18:04 Error executing GroupWise command:
12:18:04 RuleCreate("CAS";"FORWARD TO MIGRATED MAILBOX";185;;315;147)
12:18:04  Token failed execution!
If the AddProxy utility which is included with GroupWIse Migrator for Exchange was not used to establish proxy access for the GroupWise admin account being used to access the GroupWise mailboxes.
Set the required proxy rights for the GroupWise admin account using the AddProxy utility.
Please see Appendix A of the GroupWise Migrator for Exchange User Guide for more information on the AddProxy utility.