How to 'lock down' IDR adaptive learning by supplier or user?

Summary: How to 'lock down' IDR adaptive learning by supplier or user?

Content (please ensure you mask any confidential information):  there have been instances of user error (wrong adaptive learning) resulting in the invoice date being recognised on the system as the invoice number, leading to about 70 invoices getting stuck as 'Duplicate', because there was already another invoice for the supplier on that date. Now all of these will have to be manually corrected, it is not as if correcting one will automatically fix all of them because they are all already loaded and sitting in a duplicate error state.