Diagnosis
An error occurred in routine IZWST_EXTEND_FOR_VOR (LEA01F02) during thedetermination of meter reading results for the previous period &V1&-
V2. the exact cause of error can be taken from the previous message,and comes from function module ISU_SIM_IZWST_ESTABLISH.

Procedure
Check the meter reading results for the installation. Contact SAP ifyou cannot correct this error.