Item category & can only be used without material
Message type: E = Error
Message class: ME - Purchasing: General Messages
Message number: 019
Message text: Item category & can only be used without material
What causes this issue?
The <GL:item_category>item category</> you entered does not permit the
entry of a <GL:material_number>material number</>.
How to fix this error?
Set the material number to "blank".
Error message extract from SAP system. Copyright SAP SE.