In delivery Customizing, the data exchange with the customs administrations of different countries is largely preconfigured and in most cases coordinated with the authorities in certification procedures. Changes to the delivered configuration should therefore be made with great caution, if at all.
In this context, SAP Note 1989009 warns against interference with the program source code. If adjustments to the system settings are required due to a release upgrade in the IT procedure of a national customs administration, you will find corresponding instructions in SAP Notes.
When replicating the billing document, SAP GTS determines the foreign trade organization responsible for the export. The system takes the country of departure from the address of the business partner in this role. For example, if the billing document was created for a French company code, SAP GTS determines the country code FR from the address of the business partner representing the foreign trade organization assigned to the company code. Consequently, the system applies the legal regulation for processing exports from France (CUSFR (Customs Processing - France in delivery Customizing).
In Customs Management, a process template is assigned to each legal regulation (menu path: SAP Global Trade Services, edition for SAP HANA → Customs Management → Control Settings for Application Areas by Legal Regulation of a Legal Code). Process templates are always country-specific. They are the framework for communication with the customs authorities. You can see the structure of a process template in the communication control in Customs Management (menu path: SAP Global Trade Services, edition for SAP HANA → Customs Management → Communication Processes → Define Control Settings for Communication Processes).
If electronic data exchange with the customs authorities is temporarily not possible for technical reasons, a fallback procedure can be used in some Member States. In this procedure, customs allows the customs declaration in question to be submitted in paper form. The process flow of the fallback procedure is always controlled in a separate activity sequence.