RLS questions

Hi bi_kwoksanlee 

I found some links helpful, please take a look at them.

https://community.powerbi.com/t5/Service/Row-Level-Security-External-User/m-p/756857

https://powerbi.microsoft.com/en-us/blog/power-bi-expands-access-to-intelligence-for-external-guest-users/

https://community.powerbi.com/t5/Service/Sharing-report-with-2000-external-users/m-p/1850593

Besides，

How to enable external users to edit and manage content within Power BI

https://docs.microsoft.com/en-us/power-bi/guidance/whitepaper-azure-b2b-power-bi#enabling-external-users-to-edit-and-manage-content-within-power-bi

how to add members,

https://docs.microsoft.com/en-us/power-bi/admin/service-admin-rls#working-with-members

Hope it helps!

Best Regards,

Community Support Team _ Tang

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