SAP Message WFEA002 - Problems determining excluded agents

Diagnosis
Workflow &V2& for multistep task &V4& had to be aborted, since theexcluded agents could notbe determined for step &V1& via &V3&.

Procedure
You have two alternatives:
Restart aborted workflow
Change the organizational plan, so that &V3& provides a number of usersother than zero. Then choose Restart After Error.
Change workflow definition
Change the excluded agents in step &V1& of workflow definition &V4&.Then restart the workflow. Choose Delete Logically for the oldinstance with errors.