SAP Message UPC_FW104 - Entry not possible, var. does not have replacement type user-spec. vals

Diagnosis
You want to enter your own values for variable &V1& . However, this isnot possible, because the variable does have the replacement type'user-specific values'. You can only enter values for variables withthis replacement type.

Procedure
Only enter additional values for variables with the replacement type'user-specific values', for which adding your own values is allowed. Tofind out which variables fill these conditions, choose Definefilter criteria and set the filter criteria 'User entry allowed'.