SAP Message BT096 - Invalid start date values

Diagnosis
A conflicting or incorrect set of start specifications were made forthe current job.
This error can only occur in programs that use the backgroundprogramming interface to schedule jobs non-interactively. Onlyerror-free specifications are accepted from interactive users.

System Response
No action taken.

Procedure
Correct the application program that produced this error. If theprogram was delivered by SAP, please contact SAP for help in correctingthe error.