triPOS®

Incremental Authorization

Incremental Authorization

An AutoRental or HotelLodging merchant uses this endpoint to increase the amount of an original authorization when the total amount to be charged exceeds it. When submitting an incremental authorization, the transactionAmount is the amount by which to increase the original authorization. Not all card brands or market codes support an incremental authorization, but triPOS handles these restrictions internally and provides a HATEOAS link in the authorization response whenever an incremental authorization is supported.

Example: Auto Rental return amount is greater than original authorized amount (with card brand that supports incremental authorization)
-Client picks up vehicle, original authorization amount is $100 on a Visa or MasterCard.
-triPOS returns a HATEOAS link for incremental authorization (with the transactionID of the original authorization) in the authorization response.
-Client returns the vehicle without refilling the gas tank.
-Total amount to charge to the client is $150.
-Merchant uses incremental authorization HATEOAS link for transactionAmount of $50.
-Merchant submits an authorization completion for $150.