NameDescriptionTypeAdditional information
bookingId

string

None.

bookingHash

string

None.

applePayToken

Apple Pay JS payment.token as a JSON string: in onpaymentauthorized, JSON.stringify(event.payment.token). Required on the first ProcessPayment charge; send empty when polling or after 3DS (same as live customer sites).

string

None.

successUrl

string

None.

expectedAmountInPence

Optional: amount in pence sealed into the wallet sheet; validated against outstanding balance before calling Fiserv.

integer

None.