If your client is paying ACH for the first time using the payment portal and it fails due to an error, e.g. Corporate Customer Not Authorized, the Payee ID should be attached to the transaction.
The Payee ID of your firm comes from Payrix.
Sample Payee ID email notification from client:
We suggest you provide the Payee ID to your clients in case there's a need for them to whitelist or register the payee ID with their bank to allow payments to go through from that ID. If the Payee ID has not been authorized or is unrecognized, the bank could block the transaction. This process could vary from bank to bank.
If your client had a previous block and the Payee ID gets authorized, Contact us so we can inform Payrix as there is most likely a block on their side as well that will need to be removed.