You are receiving the below error when trying to publish an invoice to your accounting software.
Error occurred while checking for duplicate invoice.
This error is can occur when you do not have the Allow Duplicate Invoices to be Approved setting switched on for your company.
To clear this error, you will need to do the following:
From your company homepage, click the Integrate button on the left hand side.
Click the box next to the option Allow for Duplicate Invoices to be Approved for Accounting Software to select it.
Republish the affected invoice(s).
Once the invoice(s) are successfully published, the error message will clear.
Xero, QuickBooks Online and Sage Accounting/SBCA users can use our File Matching function to manage duplicate transactions. More information on this can be found here.