I have deleted a supplier which still has pre-payments tagged to it from the bank account. I need to re tag these transactions to the new supplier account but it is not allowing me.
I have also tried to restore the deleted supplier account, so that I can de-tag the transactions - but the supplier will not restore.
I think I see the supplier you’re referring to. You can normally restore suppliers from the main supplier list, although in this case you have an active supplier with the same name. I’ve gone and flagged the deleted supplier with “(old)” and I was then able to restore.
If you locate that restored supplier record, you can now go in and view all payments. From there you can delete the unallocated items individually.