Cybersource API "Create a Boarding Registration" Works on Developer Portal but Fails in Postman

[Artan]

POST https://apitest.cybersource.com/boarding/v1/registrations

I'm trying to use the Cybersource API for the "Create a Boarding Registration" feature, as documented here.

When I test the request on the Cybersource developer portal, it works perfectly. However, when I replicate the same request in Postman, I receive the following error:

{
    "response": {
        "rmsg": "{\"error\":\"UNAUTHORIZED_USER\",\"error_description\":\"UNAUTHORIZED USER\"}"
    }
}

I'm using the same headers as shown in the Cybersource documentation and portal:

 - Authorization: Bearer <Bearer> 
 - Content-Type: application/json
 - v-c-merchant-id: alpha_001
 - Host: apitest.cybersource.com

Has anyone else faced this issue or knows why this might be happening? Any guidance would be greatly appreciated!

[SyedSa]

Hi @Artan, Thank you for reaching out. An agent will get back to you as soon as possible. Until then, if any community member has information that may be helpful, feel free to reply in this thread.