The Santander e-banking plug-in is formatted to only output as the standard BACS format and not in Bulk Faster Payment format.
Where some slight confusion may have arisen from the communication, is that Santander have previously accepted the simpler BACS format exported by the Sage 200 program and deemed the file suitable for Faster Payments. This will stop as of the 9th of January 2024.
From the 9th January 2024, customers can continue to use and process E-Payments in Sage as normal, no changes will need to be applied. Customers will just need to be aware that payments will be have to be processed as standard BACS payments.