Diagnosis
The unit of time &V1& could not be found. In Personnel Cost Planning,this could have two reasons.
The unit of time &V1& has not been maintained in table T546T.
The unit of time &V1& has been maintained T546T, but the conversionentry for the unit of time &V1& in the current planning's unit of timehas not been maintained in table T777L.

Procedure
Check whether the unit of time &V1& is the one you want and ifnecessary, maintain the entries in the tables.