SAP Message CACSSESTD030 - Error while determining posting year of settlement schedule &1

Diagnosis
When a new settlement schedule is posted, the system determines thecreation year as part of the settlement schedule key. Initially, thetime stamp is set when the posting is made, and then the year is derivedfrom this. In the current case, no valid year could be found. Therefore,the posting had to be terminated.

Procedure
Contact your system administrator for an analysis and solution of theproblem.