If your card program uses Gateway JIT Funding, your system must approve or deny each JIT Funding request it receives.
To verify the outcome of a JIT Funding event, check the informative message sent to your webhook endpoint after each funding event. Each transaction funded using JIT Funding includes a jit_funding object with data about the request. Your system's response is stored in the gpa_order.funding.gateway_log.response object.
Note: Your system is one participant in the transaction lifecycle. Approving a transaction using Gateway JIT Funding does not guarantee the payment is completed successfully. Refer to the state field to confirm the outcome of the transaction.
For more information, see About Just-in-Time Funding in the Developer Guides.