SAP Message TU160 - Meter reading unit &1: no definition of dates exists

Diagnosis
The meter reading unit &V1& which you have chosen was created by an oldprogram. The dates, which are saved in table TE425, are not defined.This meter reading unit can therefore no longer be used.

System Response
This meter reading unit cannot be processed.

Procedure
You need to check whether programs exist for adjusting the old meterreading unit. Contact your system administrator.