Comprehensive and Detailed 150 to 250 words of Explanation From Positioning SAP Business Suite via SAP Financial Management Solutions documents:

SAP Global Trade Services (GTS) is an essential component of the finance and risk landscape, specifically designed to manage the complexities of international trade. It is most closely integrated with the Sales and Purchasing processes. In the Purchasing (Procurement) process, GTS ensures that goods being imported meet all regulatory requirements, checks for sanctioned suppliers, and calculates the appropriate customs duties to be included in the landed cost.

In the Sales (Order-to-Cash) process, GTS performs critical "Sanctioned Party Screening" to ensure that the company is not selling to prohibited individuals or entities. it also manages export licenses and ensures that the goods being shipped comply with the export laws of the origin country and the import laws of the destination. If a violation is detected during either the Sales or Purchasing cycle, GTS can automatically place a "block" on the transaction in the SAP S/4HANA core, preventing further processing until the issue is resolved. This tight integration ensures that trade compliance is not a bottleneck but a real-time safeguard embedded into the supply chain and financial workflows. Marketing and Production, while related to the business, do not typically trigger the cross-border legal and financial compliance checks that define the core function of SAP GTS.