Visa Developer Community

Regular Visitor

400 Bad Request For Hello World

HI Team,


I am getting 400 Bad Request when trying Hello World API from Our Middleware tool. It works fine in SOAP UI. Could you please let us know if we need to take any other setps to call the API from Middleware?


I double checked the userid and password sending as basic authentication in HTTP Headers

Do we need to send as userid and password as preemptiveAuth in Http Header ?


Error Message:

"responseStatus": {
"status": 400,
"code": "9124",
"severity": "ERROR",
"message": "Expected input credential was not present",
"info": ""



Regular Visitor

Re: 400 Bad Request For Hello World

I'm also facing the same issue. Have you resolved? Could you please let me know