A customer requirement is that want to check Account numbers before the payment goes through, but considering that they are currently using Accept.js, there is no way to actually test this as essentially as long as the ACH account number is under 17 numbers, it is acceptable.
What is the solution to verify the routing/account combination immediately?
From what I understand, you can use the PHP SDK to set the eCheck Type for a BankAccountType to 'WEB', but since they are using nonce tokens and not setting a BankAccountType, I don't know that this is even possible to create a BankAccountType and just attach the eCheckType to that and leave the rest empty.
And obviously, it would complicate things to have to run ACH transfers through the server.
