Code 9124: Expected input credential was not present

[festypat]

Please i need some clarifications about the certificate password. I was able to test via postman(https://sandbox.api.visa.com/vdp/helloworld). I included both pem(cert.pem, key_929945a5-e10e-8272-9cec-c03bad12a11c.pem) files while adding certificates alongside my username and password as Basic authentication  on postman which was successful. I tried same integration steps via my development environment(Visual Studio. C#), see response({"responseStatus":{"status":400,"code":"9124","severity":"ERROR","message":"Expected input credential was not present","info":""}}). 

[API_Managers]

Hey @festypat,

I'm happy to help you resolve the issue. Can you please let us know the API product that you're sandbox testing with?

To continue, please also provide the following information:
1. Endpoint
2. Request Header
3. Request Body
4. Response Header (include the x-correlation-id)
5. Response Body

Using SoapUI, you can find the x-correlation-id in the Raw Tab of the response header. Additionally, please provide a screenshot of the error.

[DARAM]

API used: Visa card eligibility services

This is the screenshot of the inputs. link and method used.

[API_Managers]

Hey @DARAM,

To resolve the issue, please refer to this forum post - https://community.developer.visa.com/t5/Connection-Security-Errors/Error-404-Visa-Card-Eligibility-i...