Live connection SSAS role not working

Hi Anonymous ,

Each time a user interacts with Analysis Services, the effective user name is passed to the gateway and then on to your on-premises Analysis Services server.  When your user name in Azure Active Directory (Azure AD) doesn't match a UPN in your local Active Directory instance, you need configure rules to map a user name signed in with Power BI to a name that's passed for EffectiveUserName on the Analysis Services connection. 

So please check that you have mapped to the correct role for the end user.

For more information, please refer to: Manage your data source - Analysis Services 

If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.
Best Regards,
Winniz
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