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Power Apps Portal Passing GUID in Username() instead of User Email Address



We are building a Portal for our clients using Power App Portal and have embedded our Power BI reports using liquid tags.  Within our reports we use RLS security based on email address. So we were expecting Power App Portal to send us the user email address when we use Username(). Instead its sending back a GUID.  Is there a way to change what Power Apps Portal is sending us in this parameter or pass the email address in another parameter? 



New Member

Did anyone found solution? I am facing same problem

New Member



Did you find a solution to this because we are facing the same issue, we used username() and UPN() as the dax filter but we get the guid in the powerapps portal. the RLS works if we filter by guid but we want to filter by email address

Not applicable

Hi Liang,


RLS is enabled in the report and when viewing the report in Power BI service, we do see the email address in the Username(). But once embedded to Power Apps Portal its still shows a GUID.  RLS has been setup on the report. 






"{% powerbi authentication_type:"powerbiembedded" path:settings['powerbi_url'] roles:"Test_EmailRole" %}"


Community Support
Community Support

Hi @Anonymous ,


Is RLS enabled in the report?After that was done, Username() returned the UPN of the user using the report. Note that you may need to refresh the report page to see the result.

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

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