SAP Message C2345 - The system was unable to create the settlement rule

Diagnosis You want to create or change a settlement rule for the order using theBAdI WORKORDER_FINANCIALS. This is not possible due to an error. System Response The settlement rule was not created. Procedure The master data log may contain a message giving more information aboutthe error. Procedure for System Administration Using the transaction OPJB you can define the messagecategory with which this message is transferred to the master data log.