1. Hold the reference table. One source of truth for GL code, account name, type, entity, and any sub-account structure.
2. Push updates downstream. When the reference table changes, the flow syncs the new state to NetSuite, the AP system, the BI warehouse, and any other tool that holds a GL mapping.
3. Validate usage upstream. Scan recent JEs, AP invoices, and BI reports for GL codes that don't match the reference. Surface mismatches before they break a report.
4. Reconcile entity by entity. Cross-check the reference against each system's actual current state. Drift gets flagged.
5. Output the sync report. What got pushed, what was already current, what mismatched, what needs accounting review.