Postman Request returns 401 "Required to provide Auth information"

[Christopher Doo]

Hi im struggling to discover what is causing this error. 

In my instance via REST Api Explorer I can get a 200 OK response from this using the cn_cusomerservice_case table & the correct sysid of the Case I wish to retrieve.

GET https://xxxx.service-now.com/api/now/table/{tableName}/{sys_id}

In Postman however using the same User/password combination I get the 401.

i've checked the username/password is valid and & can login.
i've checked the user is active and the name/psw is correct (& can get the record via REST explorer)
I've check that the role snc_platform_rest_api_access has been added to that account.
i've checked the "Allow access to this table via web services" = true on that table.

I'm not really sure what other things I need to check add to allow this, any assistance would be appreciated.

[RajanMurkute]

I am facing the same issue and trying to resolve it with some tips provided here. Can someone tell me, how or where do I mark the new user account as 'web-service access only'?

I am using Washington DC release.

[RajanMurkute]

I am facing the same issue and trying to resolve it with some tips provided here. Can someone tell me, how or where do I mark the new user account as 'web-service access only'?

I am using Washington DC release.

[juliancoira]

I'm having a similar issue with Postman using an API key.

• The user account associated to the key has all the right roles to access tables/records queried (double checked from UI). Also the relevant roles for the APIs.
• Configured all the API Access Policies for the APIs Case and Table. 

Still, every now and then I get an error 401:

{

    "error": {

        "message": "User Not Authenticated",

        "detail": "Required to provide Auth information"

    },

    "status": "failure"

}

If I executed the previous successful call from Postman right after this error, and then I switched back to the one that failed again... it works !

I'm starting to think this problem might be on Postman. 

[saint]

Any updates?