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parkergeis
Helper I
Helper I

Adding User Access Post-Lakehouse Creation

I believe I may have found a bug within our Fabric setup. I found the issue when attempting to add a new user as a viewer to a workspace. No matter the level of access (viewer, member, contributor, admin) I granted this user in the workspace, the report returned the following error:

parkergeis_1-1744725346952.png

 

Through some troubleshooting, I found that some existing users with the EXACT same access as my new user were able to view the report without issue. I set up a test to prove my theory; new user added, new test lakehouse, new model, point same report at new model and the user had no issues.

 

Has anyone had this issue before? Is there a workaround I am missing or is this a pretty large bug? Not being able to add users to access reports is a huge hit for our team.

 

3 REPLIES 3
v-shamiliv
Community Support
Community Support

Hi @parkergeis 
Thank you for reaching out microsoft fabric community forum.

It looks like the issue might be related to how permissions are applied, especially with RDL reports on Direct Lake models. Even with Viewer (or higher) workspace access, the user still needs Read permissions on the semantic model itself. Also, with Direct Lake, they may need access to the underlying Lakehouse or OneLake folder.

If there's Row-Level Security (RLS) set up, double-check that the new user is mapped to a role—otherwise, they won’t see any data. It’s also worth testing in an incognito window, since RDL reports sometimes cache permission states.

The fact that it works fine with a new model/report for the same user suggests it’s more likely a config or cache issue rather than a bug. You could try redeploying the report/model as a quick test.
If this solution helps, please consider giving us Kudos and accepting it as the solution so that it may assist other members in the community
Thank you.

 

Workspace viewers inherit read permissions on any semantic model in the workspace, so I don't see that being the issue. Through my troubleshooting, I did grant access to the Lakehouse (and default semantic model) and still received the same error.

 

Redeploying a model every time a new user needs permissions added feels unnecessary....

parkergeis
Helper I
Helper I

For reference, the report is an RDL file live connected to a semantic model that is Direct Lake storage mode.

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