Follow the below, if you are using the AP processing integration in Purchase Plus.
1. In [Settings] - [Accounts Payable] click the [View] icon.
2. Copy and paste the External URL into a Word document, then delete it from the External URL field (you'll need to paste it back in here later, so don't lose it!).
3. In [Documents] - [Invoices] open the invoice that is stuck in Processing and click the yellow [Halt] button in the bottom right of the screen.
4. In your Accounts Payable Hub, reinsert the External URL.
5. Your Invoice will now be in a reconciled state. Open the Invoice and click on the [Process] to reprocess your Invoice.
Your Invoice will now be processed.