We have tried creating a PO with "F" as account assignment category, "D" as item category, material number with "NLAG" as General Item Category Group. System did not allow and prompted an error message that states "Item Category D can only be used without material. (ME019)"
We checked the message setting in SPRO>Materials Management>Purchasing>Environment Data>Define Attributes of System Messages and have found out that the above message was not set up at all. With this, we just want to know if this is a SAP Standard?
Please enlighten us.