Xero Sync Error: Another invoice with this invoice number already exists in Xero
Another invoice with this invoice number already exists in Xero
This error occurs when an invoice cannot sync to Xero because the invoice number already exists in Xero.
- If this is a new invoice, edit the invoice number to one that does not already exist in Xero and sync again.
- If the invoice was also manually created in Xero, contact Customer Support to link the invoices.
- In order for the sync to work properly, bills should be created in either Xero or PayMaker and synced to the the other