Enterprise SAP ERP integration network connecting 23 specialized business systems through a centralized hub architecture. External systems including JobRouter, pitFM, ICRAS, SFirm banking, SAGE HR, and RiB/Complan construction management feed data into the SAP ERP Core System via dedicated IP endpoints and ports. SAP-native components like Solution Manager, CALM, and Support Portal provide monitoring, lifecycle management, and vendor connectivity. This hub-and-spoke topology demonstrates best practices for managing complex ERP integrations while maintaining clear network boundaries and system dependencies. Fork this diagram on Diagrams.so to map your own SAP landscape, customize integration points, or export as documentation for security audits and network planning.