Locking Due Invoices

With Xero integrated, we highly recommend ‘locking’ due invoices which prevents modifications to the invoices once they become due. This is recommended because Xero does not allow modifications to paid invoices via their API once a payment is applied to the invoice. Locking the invoice on its due date helps prevent this issue, as automatic payments are commonly run on this date.

To lock invoices on their due date, just navigate to Admin → Department Settings → Edit → Invoice Settings and then check the ‘Lock due invoices’ checkbox as outlined in the screenshot below:

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