SAP Message AH242 - Internal: contract &1 sched. billing date &2: sched. MR date is missing

Diagnosis
No scheduled meter reading date was found in the billing order for thespecified contract and scheduled billing date. The scheduled meterreading date is required in certain cases for determining the billingperiod.

System Response
Processing has been canceled.

Procedure
INCLUDE ISU_SAP OBJECT DOKU ID TX