post https://gateway.stage.bill.com/connect/v3/spend/transactions//3ds-challenge
Accept or reject a transaction.
When a transaction is created, a 3D Secure challenge may trigger to verify the identity of the cardholder. Use this endpoint to approve or deny the transaction. The Spend & Expense user must have the ADMIN user role to perform this operation.
Subscribe to the spend.three-ds-challenge.created event to get a webhook notification when a 3D Secure challenge is triggered for a transaction. See Spend & Expense 3DS challenge notification payload for more information.
See 3-D Secure - BILL Spend & Expense in the BILL Help Center to learn more about 3D Secure at BILL.