Enforce prefilled payer PayID details - Pay by Bank UX

To support merchants with strict account verification requirements, this enhancement ensures that payer details—such as PayID or BSB/Account—are securely prefilled and locked when creating a PayTo payment agreement via the Pay by Bank UX.

In order to prefill BSB/account number or PayID field shown to your customer, simply send in a value in suggestedPayerDetails field. Please refer to the PaymentRequest API file specification for further details on this field.

Note: you will also need to raise a ticket with Azupay service desk to enforce the guardrails of changes to payer PayID or BSB/account number details. We will make changes to your client configuration Pay by Bank setup