SAP Message UPC_FW091 - Variable &1 cannot be replaced in planning level &2 DOCUMENTATION DiagnosisNo values for replacement can be found for variable &V1&. This problemcan occur in the following situations:The variable has the replacement type "fixed value", but no values weredefined.The variable has the replacement type "user-defined values", but novalues were defined for the user, with which you logged onto thesystem.The variable has the replacement type "user exit", but the functionmodule that you have entered, delivers no values.ProcedureIn the context of the current planning area, change to the maintenanceof variables and check the settings for variable &V1&.