Workflow Error Msg

[S.Pitchai@shell.com]

Hi Guys, 
 
I have extracted some ERROR workflow from production sys and try to understand what went wrong. 
Please see the error message below from workflow log.  
 
ROLLBACK WORK executed (SWP_CALLBACK_WI_DONE item 8)                                                  
ROLLBACK WORK executed (SWP_CONTINUE_WITH_NEXT_NODES item 1)                                          
Workflow 'Process outgoing correspondence' no. 000030698687 step 0000000338: Work item could not be created 
Activity 338: Responsibility 'USNLTSAG' is not valid agent for task TS90200025                        
Resolution of role USNLTSAG for task TS90200025: no valid agent found                                 
Workflow Process outgoing correspondence no. 000030698687 activity 0000000338 role '&_WF_INITIATOR&': 
Work item 30698747: Agents of type A cannot be defined                                                
ROLLBACK WORK executed (SWP_CALLBACK_WI_DONE item 8)                                                  

I highly appreciate your help. 
 
Thanks
Suresh
 
 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.mit.edu/pipermail/sap-wug/attachments/20071004/db1de07d/attachment.htm