How a business partner works in the IS-U environment, and in particular under S4?
BP behaves differently here and does not use the CVI logic as in a pure S4 system. Please suggest how to work with vendors. As the customer is used in the IS-U environment via table EKUN.
how the vendors are modeled and which tables are used here with focus on BP.
Need above information to migrate data from ECC IS-U to S4 IS-U.