post https://api.pxp.net/api/v1/threedsecure/integrated/authentications
Pre-initiates an integrated 3D Secure authentication request for a transaction. In integrated mode, PXP processes the transaction in a separate initiate transaction request using the 3D Secure supplied data. This step ensures that all required data is gathered and validated before the full authentication process, facilitating a smoother and more secure transaction flow.