Issue Reported:

Guest users have been added and assigned with Microsoft Fabric Workspace Contributor permissions. But when a Guest user signs into the https://app.fabric.microsoft.com/, They are not getting the Navigation pane which is shown in the below diagram is visible in the home, and not able to see the Workspace details as well.

Resolution:

As observed, Guest users are only facing the issue and these users are not assigned a Microsoft Fabric (Free) License.

Step 1: Assigned Microsoft Fabric Free License to the Guest user account.

But still, the issue is not fixed the issue

Step 2: Enabled In Microsoft Fabric admin Portal–> Tenant settings–> Guest users can browse and access Fabric content — Enabled

Finally able to see the guest users can see the Navigation pane and access the fabric content.

Ideally, we need to assign a Microsoft Fabric(free) License and enable the settings to make guest users use Fabric without any other issues.