This enables a merchant to include their merchant_reference generated from their web-app since it was not supported in the previous API.
The merchant_reference will be included in the IPN sent to your web-app which you can preferably use to complete your payout requests.
If you have already implemented the Bank Payout API,
then you already know how to use it as it works like the Bank Payout API.
It's only 1 or two parameters that change.
I would recommend adopting as soon as possible.
The previous one still works but could be deprecated in the future.
You can read more about it from