# How does invoice processing integrate with QuickBooks?
Invoice processing systems integrate with QuickBooks via API (Application Programming Interface) or direct data synchronization. The integration: automatically imports vendor bills from invoice processing system to QuickBooks, creates or matches vendor records, maps invoice data to correct accounts, classes, and locations, syncs payment status bidirectionally, eliminates duplicate data entry, and maintains data consistency. Setup typically involves OAuth authentication (connecting accounts securely), field mapping configuration, and testing. Benefits include: single source of truth for financial data, automatic posting of approved invoices, real-time visibility, accurate books without manual entry, and seamless workflow from invoice receipt to payment. Both QuickBooks Online and Desktop support integrations with major invoice automation platforms.
## Key Takeaways
- Invoice processing systems integrate with QuickBooks via API (Application Programming Interface) or direct data synchronization.
- The integration: automatically imports vendor bills from invoice processing system to QuickBooks, creates or matches vendor records, maps invoice data to correct accounts, classes, and locations, syncs payment status bidirectionally, eliminates duplicate data entry, and maintains data consistency.
- Setup typically involves OAuth authentication (connecting accounts securely), field mapping configuration, and testing.
## Related Topics
- QuickBooks integration
- invoice QuickBooks
- QuickBooks invoice automation
- sync with QuickBooks