Message Number list used by SAP ABAP Program RSWIOINS (Hierarchical List of Work Items for an Object)
SAP ABAP Program RSWIOINS (Hierarchical List of Work Items for an Object) is using
# Object Type Object Name Object Description Note
     
1 Message Number  WI - 500 Work item cannot be displayed
2 Message Number  WI - 502 Work item executed
3 Message Number  WI - 503 Work item could not be executed
4 Message Number  WI - 504 No work items in connection with object &1 &2
5 Message Number  WI - 701 No active plan version available
6 Message Number  WI - 800 Unknown error