This error means the supplier is not set up for BACS/CHAPS in the Payment Processing module. To fix a DPS User with an Accounts Licence will need to follow the steps below:
From the DPS Home screen, select Purchase Ledger.
Select Supplier.
Either scroll to locate the supplier and double click on the supplier row, or enter Supplier Account ref and click refresh, then double click on the supplier row.
Select the Payment Info tab.
Tick BACS Payment tickbox.
Click Save.
This will now allow you to process through Payment Processing. If you are using the BACS upload to your online banking platform then please also complete the Bank Account details for the supplier, then Save, so that these pull through on the .csv file.