AP Automation and ERP Integration Testing for Dealership Groups

1. Test entity handling: confirm each rooftop is its own entity. 2. Test store coding: confirm invoices code to the right store. 3. Test ERP sync: confirm data flows accurately to the accounting ERP. 4. Test vendor sync: confirm vendor records align across systems. 5. Test approval routing: confirm approvals route by rooftop. 6. Test validation: confirm coding validates against the ERP. 7. Test error handling: confirm failures surface for resolution.

The first thing to test is that AP automation handles the dealership group's multi-rooftop structure. Dealership groups typically operate each store as its own entity, so the platform has to keep rooftops cleanly separated, with each store's invoices, coding, approvals, and books distinct while the group processes across all of them.

Testing should confirm that an invoice for one store lands on that store's entity, that approvals route to that rooftop's people, and that the group can see all rooftops together without them blurring. A platform that cannot handle the entity count and separation a dealership group needs will not work, so validating multi-rooftop handling comes first.

The core of the testing is the integration with the accounting ERP, because the ERP is the system of record. Dealerships run industry-specific operational systems, but the AP integration that matters is with the accounting ERP that holds the financials. Testing should confirm that vendor data, coding, invoices, and payments sync accurately between AP automation and the ERP, with nothing dropped or mismatched.

This is where integration testing earns its place. The test plan should cover vendor synchronization, invoice and coding export to the ERP, validation against the ERP's structure, payment export, and error handling, confirming each path moves data correctly. The error-handling test is especially important: when a record fails to sync, it has to surface for resolution rather than disappear, so work does not get lost between systems.

The remaining tests confirm the AP workflow itself works across rooftops. Coding by store should be validated, ensuring invoices carry the correct rooftop and entity and the dimensions the ERP expects. Approval routing should be tested by rooftop, confirming each store's expenses reach the right approver.

Validation against the ERP should be tested so that coding which does not fit the ERP's structure is caught before posting rather than failing on export. Across all of this, the testing should reflect the reality that a dealership group runs many rooftops, so the tests should cover multiple stores rather than assuming one. Confirming coding, approvals, and validation work per store is what makes the AP automation reliable across the whole group.

Stampli integrates with the accounting ERP and keeps it as the system of record, mirroring its entities, dimensions, vendors, and rules, which is the integration that matters for a dealership group running industry-specific operational systems alongside that ERP. Stampli is multi-entity, so each rooftop can be handled as its own entity on one platform.

For the data flow a dealership group should test, Stampli syncs bidirectionally with the ERP and validates against its rules before posting, so vendor records, coding, and transactions align, and coding that does not fit is caught rather than failing on export. Stampli AI suggests coding by store with human review, and approval routing sends each rooftop's expenses to the right approver.

Because every action is captured in an immutable audit trail and the ERP stays authoritative, the integration is traceable and the financials stay in the system of record. A dealership group's integration testing should validate Stampli's data flow with the accounting ERP across rooftops, exactly as it would for any platform, confirming the sync, validation, and error handling work for the group's environment.