Multiple Document Category for AP Intecompany Invoices

Dear all,

I have this requirement. I need to work with the Intercompany Module in which for the same supplier there will be different type of invoices on payables side.

It means that these different invoices will have different AP document category. In this moment the intercomany process is genenating AP invoices on the STD Invoice category but it's not correct. The same supplier may have different document category and for sure we don't want to use ti STD Invoice category.

Please advice how to drive:

1. different category document (no STD Invoice document)
2. multiple document categories on AP invoice for the same supplier.