Customers and vendors that you transfer from your feeder system to the SAP GTS system are stored there automatically in the form of business partners. Business partners are used in a number of different SAP systems. They are part of the cross-application functions in SAP ECC and SAP S/4HANA, but they are also used in SAP EWM, for example.
You define the function or functions that a business partner performs for your company by assigning one or several business partner roles to it in the system. A number of specific business partner roles are supplied for SAP GTS in delivery Customizing.
Business partners for customers and vendors transferred from the feeder system are automatically assigned the corresponding business partner roles "Customer" (SLLCPC) and "Supplier" (SLLCPS) respectively in SAP GTS. Banks are created as business partners in the "Bank" (SLLBNK) role; contact persons are assigned the "Contact Person" (BUP001) role.
Basically for the purposes of document replication, you have to map all feeder system company codes and plants that are relevant for SAP GTS as business partners. You create business partners that represent company codes in the "Foreign Trade Organization" (SLLFTO) role. The same business partner may also assume the role of a "Provider of Information" (SLLPOI) in Intrastat declarations. Plants relevant to SAP GTS correspond to business partners in the "Legal Unit" (SLLSIT) role. The "Administrative Unit for Vendor Declarations" (SLLMGR) business partner role is intended for preference management.
A business partner in the "Legal Unit" role can also be used to map a storage location in SAP GTS.
The foreign trade organization maps your company with regard to customs and foreign trade law in SAP GTS. It is recommended that you create a separate business partner for each of the company codes and plants that are relevant for SAP GTS. In Customizing of your SAP GTS system, you assign the business partners in the foreign trade organization and legal unit roles to their feeder system counterparts, company codes and plants respectively.
In addition to business partners in the foreign trade organization and legal unit role, you might have to map customs offices, other authorities or government agencies, and data providers as business partners in SAP GTS-specific roles:
Customs Office (SLLCOF)
Government Agency (SLLAUT)
Data Provider (SLLDAP)
You have to create a business partner in the "Data Provider" role if you want to upload data such as commodity codes or sanctioned party list entries into your SAP GTS system.