When sending an invoice through to Xero, you may encounter several errors. Here are a few reasons why you may be experiencing this:
Payments can only be made against...
- Incorrect Invoice order.
- Incorrect Invoice title.
- Seen when payment is already sitting in Xero waiting to be cleared.
Provided that your set up is correct in the Xero Settings of ResBook, go into Xero and check where the Invoice has been saved. Verify the details of the invoice. If all is correct, then it could be that payment has already been received in Xero and is awaiting clearance.
Invoice not of valid status for modification.
Due date of the Invoice is before the Booking's accommodation date.
Adjust the due date of the Invoice, and try resending.