About This Architecture
SAP VIM with HEU and HILL architecture integrates vendor invoice processing across two S/4HANA instances using IES/IC4S OCR platform for document classification and OpenText Archive servers for content storage. Invoices flow from vendor email through SMTP, OCR processing, and document classification into separate content repositories—HEU for System 1 (S/4HANA 2021, VIM 20.4 SP5) and HILL for System 2 (S/4HANA 2023, VIM 23.4)—with ArchiveLink connectors routing documents to FI/AP posting. This dual-system design demonstrates how to scale invoice automation across heterogeneous SAP landscapes while maintaining separate archive repositories and VIM versions. Fork this diagram on Diagrams.so to customize OCR thresholds, add additional SAP systems, or integrate alternative archive backends. The architecture isolates each system's document lifecycle, reducing cross-system dependencies and enabling independent VIM upgrades.