New Computerised Transit System (NCTS) is used to move products between EU member states and those outside the EU. NCTS allows customs officials to track and manage how items move through a customs zone. The system makes it easier for products to move between customs offices inside the European Union (EU) and between the EU and some non-EU nations.
For context, the Union Customs Code (UCC) changes driving interoperability between various country customs systems in the EU are also driving the change to NCTS system to NCTS Phase 5. Every EU country is required to migrate their NCTS implementation from version 4 to 5 by November 30th 2023. This document focuses on migration to new European NCTS Phase 5 for Germany’s ATLAS 9.1 system. With Change to new NCTS 5, Customs Shipments for NCTS in Germany must be filed electronically to the German customs system ATLAS 9.1.
The communication with the German customs authorities in the transit procedure area is to be switched from ATLAS 9.0 to ATLAS 9.1. This is the German implementation of the European NCTS phase 5.
NCTS phase 5 introduces a new interface between SAP GTS and the converter in the context of message exchange with the customs authorities.
The structure of the NCTS Phase 5 Shipments is a three-tier hierarchy compared to the two-tier structure of header and item in the current interface. Changes will be on new interface for NCTS between SAP GTS and SEEBURGER BIS. The new interface between SAP GTS and Seeburger for NCTS is based on web services. The IDoc interface is no longer used for NCTS Phase 5. This requires changes on the IT infrastructure to enable web service calls in both directions between SAP GTS and SEEBURGER BIS.
Customs Message Exchange (CME) is an integration scenario between SAP GTS and the middleware (converter) that is used to exchange messages for customs authorities using Web service technology.
Sending a Message (Customs Message Exchange Request)
Receiving the final status of an outbound process
(Customs Message Status Notification)
Receipt of a message from the customs authority
(Customs Message Exchange Confirmation)
While setting up Logical Receiver Determination, maintain country of Legal Regulation and Data Transmission Service Provider
This is from the Custom Shipment Document in SAP GTS
Message flow
M0121 XML
A common issue encountering our customers is the firewall rules preventing web services end points being accessible in either direction. Typical resolution involves involving the network security teams that manage firewall rules to update them and whitelist the end points for Seeburger quality and production end points.
Since NCTS Phase 5 replaces the IDOC communication with Web services, SAP delivers a web services communication test tool Transaction /SAPSLL/CMSGEX_TST that can be used to test communications between GTS and Seeburger.
The typical IDOC monitoring tool transaction WE02 are no longer useful. Message monitoring is instead done in SRT_MONI web services message monitoring transaction.
While the typical message flow and data requirements remain like what existed before NCTS Phase5, there are still important underlying changes Introduced by NCTS Phase 5. The most important change being to the communication setup between GTS and Seeburger converter from an IDOC to a Web Services. Which in turn drives how we test, troubleshoot and establish communication channels from GTS to Customs and vice versa.