Message Number list used by SAP ABAP Program REWW_RSWIOINS (Hierarchical List of Work Items for an Object)
SAP ABAP Program REWW_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