ADVU system dataflow ER diagram maps nine source systems—RCLOSC, E5UK, EURG, TOTL, FIMR, PFEX, BOOST, SUPSPM, and BIPD—feeding client, transaction, and sales data into a centralized hub via numbered integration flows. Each source entity maintains a primary key and connects to the ADVU system through identified or unidentified dataflows, with crow-foot notation indicating one-to-many relationships. This architecture demonstrates enterprise data consolidation across disparate business domains including client management, billing, e-commerce, and logistics. Fork and customize this diagram on Diagrams.so to document your own multi-source ETL topology, add transformation logic, or export as .drawio for integration into data governance documentation. The INCONNU (unknown) source placeholder highlights the importance of source discovery and lineage tracking in mature data platforms.