Authorization Service

To authorize an Apple Pay payment, You can request the authorization service

Use the authorization service to process payments.

An authorization confirms that a payment card account holds sufficient funds to pay for a purchase. A successful authorization places a hold on the funds in the account, reducing the cardholder's available limits by the authorized amount.

This section provides the information that you need for requesting the authorization service using these methods which determine the request fields that are required to request the authorization service. In addition, different request fields are required in order to request the authorization service. The type of card used to process the transaction determines which request fields are used.