ORA-01403: no data found [[WFENG_ERR_PROC_ERROR]: ORA-01403: no data found]
When calling a custom workflow from back-end using wf_engine I am getting the error.
ORA-01403: no data found [[WFENG_ERR_PROC_ERROR]: ORA-01403: no data found]
Output of script:
sqlplus apps/<pwd> @wfstat.sql
**** Activity Statuses
XXDEMO_PROCESS/XXDEMON ERROR #EXCEPTION
<what is this above error>
**** Errored Activities
Wf_Notification.SendSingle(SYSADMIN  | XXDEMO  | XXMSG  | WF_ENGINE.CB)  | 
|---|---|---|---|
Wf_Notification.Send(SYSADMIN  | XXDEMO  | XXMSG  | WF_ENGINE.CB)  | 
Wf_Engine_Util.Notification_Send(XXDEMO  | XXDEMO47492  | 310453  | XXDEMO:XXMSG)  | 
Wf_Engine_Util.Notification(XXDEMO  | XXDEMO47492  | 310453  | RUN) [[WFENG_ERR_PROC_ERROR]: ]  | 
Any suggestions is much appreciated.
thanks in advance.