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Helper I
Helper I

Access token is empty - HTTP



I'm hoping someone can help!


I have used an HTTP request to create a Private Channel in Teams and make myself an owner, using OAuth authentication. This works.


I would like to add another owner to this channel so have triggered another HTTP call: 


But this returns: "InvalidAuthenticationToken", "Access token is empty.",


I believe you have to set the Headers to:

Authorization: Bearer {Token}


But how can I get this token?


I have tried a POST:



With body:




But continually getting errors so must be missing something!


Any help would be much appreciated. 



Advocate II
Advocate II

Hi Carl, 


here is my configuration.

under the red stripe should put you Tenant ID.

The other fields into the HTTP Request's body represents exactly: your tenant ID, you Client ID (APP registration ID) and the related secret key (app registration secret key - from AAD)




hope it's helpful for you.



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