Permissions on SSAS tabular not working when Sharing a Dashboard

[esamuel1]

I know that when you share a dashboard within Power BI users can access the data set that the dashboard is using. This has worked great with our SSAS instances until yesterday. I shared a report with a user (who didn't have reader access to the tabular model) and he couldn't access the dashboard via app.powerbi.com. I started running profilers on the SSAS box and saw that it was saying his userid didn't have permisssion to access the data source. Once I explicitly added him into a reader role on the model he could access it just fine via app.powerbi.com.

[andre]

Before GA, content against SSAS was rendered using credentials of the person who created the content.  Now, the EffectiveUserName of the person consuming content is passed all the way to the AS model.  Therefore, you always to have a role in your model with read access otherwise, only the AS Admins will be able to see the data.

[meysun]

Yes. This is the expected behavior. For SSAS the current users credential flows through. Before GA, there was a bug and that might be the reason you might have had a different experience before.