Initialize payment page (3DS).
/cnbs/v1/dp/init_pp
POST
{
"loader_url": "https://digitalpayments-core.demo-digitalpayments-sap.cfapps.eu10.hana.ondemand.com/dpjslib/latest/loader.min.js",
"dp_trans_id": "1a0f75afb8c90248b6d4dfcb0a33186ca114dd528cee",
"api_session_id": "ATRBNHnFVhY+Tis5a/9oPSdMQQ7dNHF6X3QMbpAewrbRegA0XlI0pSKynQgtrAOXkgTQ",
"psp": "ZNUV",
"payment_page": "PayaConnect-page",
"status": {
"message_type": "S",
"message_identification": "/CNBS/X_API",
"message_number": 10,
"message_line_string": "Request successfully processed"
}
}