SAP Message AJ064 - Field &1 is empty

Diagnosis
It has been determined in the update of the billing program in moduleISU_CONFIRM_ERCH_EITR_FIELDS that field &v1& is not filled.

System Response
Billing was canceled because the data is inconsistent.

Procedure
A program error has occurred; contact SAP.

149718Termination of billing with error AJ064