Diagnosis
You have attempted to update a value in the installation facts foroperand &v1&. However, a value has already been updated for the operandfrom the same period.

System Response
Processing has been canceled because an operand is not to be updatedfrom billing more than one time in a period.

Procedure
Make sure in the structure of the billing schema that operand &v1& isupdated in the installation facts one time only for each period.
(Note: additional information about this error can be found in thedetails for this message.)