When processing individual invoices/bills through AutoEntry, it will recognise any duplicate invoices that may have been uploaded in error as the second step in it's duplicate check.
For AutoEntry to catch a duplicate, it uses the following 4 criteria to confirm:
Where these four fields match a document previously uploaded, the document will be marked as a duplicate and rejected. You can find these invoices in your rejected folder with a notice that it was a duplicate invoice.
If you are unsure, you can click View on the left to view the image and override the duplicate check and force the invoice through to the inbox by clicking the Move to Inbox button to the right. The Activity Page will also show the item as rejected.
As the full extraction and verification is done before an invoice can be confirmed as being a duplicate, any rejected invoices/bills consume a credit as normal.