Wrong behavior doing customize of Partner Schema in EBP

Dear supporters,

We work with SRM server 550 SP 14.

We want to define partner function" Invoicing Party" in Partner Schema, and map to purchase order transaction.

We are trying to define Partner Schema under Partner Determination Procedure, but we arenu2019t getting the partner function" Invoicing Party".

It looks like we have a problem with adding partner function to the Partner Determination Procedure.

Thanks & best regards,

Gil Shinar