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EBWorkingItOut's avatar
EBWorkingItOut
Frequent Visitor
3 years ago
Solved

Authorization Header unsupported but using Anonymous Credentials PowerBI API

Hi Everyone,   So I'm pretty new to using API's and that side of Power but have been working through a workspace monitoring solution through calling the Power BI RestAPI. Having managed to set up a...
Need Help
  • Anonymous's avatar
    Anonymous
    3 years ago

    Hi EBWorkingItOut ,

     

    As far as I know, this error you were seeing was not from PowerBI but from the API you were trying to connect to.  Somehow your datasource may stop trying to login "Anonymous" and had got set to "Basic".  You can reset the type by steps as below.

    File>Options and settings>Data source settings

    Then edit the permission to reset the type. The credential type should look like as below.

     

    Best Regards,
    Rico Zhou

     

    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

     

     

Anonymous's avatar
Anonymous
Not applicable
1 year ago

I'm currently facing same issue. I have checked my data source settings and it is set to anonymous and none. but it's still shows error as below: 
Expression.Error: The 'Authorization' header is only supported when connecting anonymously. These headers can be used with all authentication types: Accept, Accept-Charset, Accept-Encoding, Accept-Language, Cache-Control, Content-Type, If-Modified-Since, Prefer, Range, Referer

I have also tried creating new query but still getting same error.