Hi all,
I have been using postman since long time now. However when I was checking for my new collection, I am getting below error. The GET requests works fine, but problem while POST.
Similar to 403 Forbidden, but specifically for use when authentication is possible but has failed or not yet been provided. The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource.
Hey @joshi240387 
Welcome to the Postman community! 
Without providing more information and contextual details, this is going to difficult to answer.
We have no idea what API you’re using, how you’re using it or what the structure of the request should look like.
All we know is that a GET request works but a POST request doesn’t. 
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