SAP Message AH234 - Maintain operand values for operand &1

Diagnosis
You have not defined any operand values for operand &v1&, however,operand values are required for this operand in order to calculate therate.

Procedure
Define operand values for operand &v1& or specify the operand valuesfor the operand in the rate category facts or installation facts.Please note the function of replacement values.