Currently the only way (I see) that ACH can be added is if a Partner sends an Invoice and the customer adds the banking information (if you turn it on). In Partner Center we can add a Credit Card in the billing information. We CAN NOT add ACH information. This seems like a such a small thing to add.
This will enable partners to collect relevant CC/ACH Authorization and set up billing on our end. This would be particularly helpful when a client wants to update banking information and chooses ACH.
I am in the process of trying to move all of my billing over to the platform. And this is a challenge.
Please add the ability for a partner or a client to add ACH information in the applicable billing sections of Partner Center or Business App