SAP Central Finance (CFIN) — a deployment of S/4HANA Finance that replicates financial postings from source ERP systems (SAP and non-SAP) into a central S/4HANA system in real time via SLT, giving a unified accounting and reporting layer without a full system conversion. Covers initial load and ongoing replication, mapping (cost objects, master data), error handling (AIF), and the central process scenarios it enables.