QuickBooks & Xero Sync keeps an external accountant’s ledger aligned with your ERP — or migrates you off QBO/Xero entirely: contacts, invoices, payments, and mapped chart-of-accounts journals flowing on schedule. For US and international businesses whose CPA insists on QuickBooks or Xero while operations run in the ERP — and for migrations into Odoo/ERPNext with history intact. Planned features include initial migration tooling with validation reports, scheduled two-way sync of customers, vendors, invoices, credit notes, and payments, account and tax mapping tables, conflict resolution queues, sync logs with replay, and a cutover mode that freezes the legacy side cleanly. This app is currently in development on the ECOSIRE build pipeline. It will ship first for Odoo 17, 18, and 19 simultaneously, with an ERPNext port following on the v15/v16 track — the same triple-version coverage as every live ECOSIRE app. One-time license, free updates within your major version. Register your interest on this page to be notified at launch and to help shape the first release.