Legacy ERP compatibility refers to the ability of a modern software solution to connect, extract data from, and operate alongside older enterprise resource planning systems, without requiring a full ERP migration or replacement. In practice, it means that AI-powered financial controls can be deployed on top of an existing system, however dated, rather than waiting for a technology overhaul that may be years away.
Legacy ERPs, Sage 100, Cegid V8, older SAP configurations, or homegrown accounting systems, are extremely common in mid-market companies across retail, manufacturing, and hospitality. These systems work, but they weren't designed for AI-native workflows: their data structures are rigid, their APIs are limited or nonexistent, and any modification to core processes requires significant IT involvement.
The practical consequence: companies running legacy ERPs often defer financial automation indefinitely, assuming the ERP is a prerequisite. It isn't. Phacet's integration layer is designed to work with structured exports, FTP feeds, and file-based connections, the data exchange formats that legacy ERPs actually support. Whether the ERP outputs a CSV, an XML, or a flat file, Phacet ingests, normalizes, and applies financial process automation on top of it.
This means supplier invoice verification, bank reconciliation automation, and pre-payment controls are deployable regardless of ERP vintage. The AI layer doesn't replace the ERP, it adds the control intelligence that the ERP never had.
For finance teams whose first question in any software evaluation is "does it work with our ERP?", the answer with Phacet is designed to be yes, without a migration project
