PowerBI Rest API Authorization Error

[vpandey07]

We have followed the steps given for registering a service principal for external customer App. We need to get the embed token from Power BI Rest API using a Java backend. Java app first acquired the access token from Microsoft Graph and then called the below endpoint - 

POST - https://api.powerbi.com/v1.0/myorg/groups/(groupId)/reports/(reportId)/GenerateToken

However we are getting 401 error with response header 

X-PowerBI-Error-Info : ServicePrincipalsNotAllowedByTebsntAdminSwitch.

Could some one provide some feedback what is missing ? 

[vpandey07]

Yes , the SP does have permission.

[vpandey07]

n Portal or in our case Azure ?

[sergej_og]

Hey @vpandey07 ,
I'm not the expert on this field but maybe this guy can deliver you an idea for troubleshooting your issue.
https://pbi-guy.com/2023/05/21/create-a-post-request-with-power-bi/

Do you have given tenant permission to your SP to use XMLA endpoint? (in your tenant settings).

Regards