This is a common error which appears when the item has already been published to Xero but has status different to 'Draft' (for example 'Awaiting approval', 'Paid', etc.)
To ensure that duplicates are not created in your accounting software we put an electronic tag on all items after they have been published. Simply remove this tag to allow them to be republished by following the steps bellow.
1. Login to Xero, find the item and void it.
2. Go back to ReceiptBank with your personal e-mail and password.
3. Select the item in your Archive (tick the checkbox).You can try 'Advanced Search' engine, next to the 'Supplier search' box.
4. Click the button on the top menu at the top that says 'Unarchive' . Ensure you select the 'Clear publishing data' option before submitting.
5. Republish the item from your 'Inbox' by clicking the 'Publish' button.