App access for external users

Hi Anonymous ,

When you share an app with an external user with ad hoc invite, the external users who is granted permissions to enter the app will receive an email with app link. Then these guest users click this link, and they are asked to authenticate with their own organization's identity. Once they are successfully authenticated, they are redirected to shared app. You can use the methods in the following documentations to limit or block what can do in your organization:
Export and sharing settings

Enable B2B external collaboration and manage who can invite guests
In addition, only external users who have been granted permissions can access to shared app and they must have the proper licensing in place to view the content of shared app: the contents located in Power BI Premium or they have pro license. You can find more details in this documentation.

Here is the offical documentaion with full detail about how to distribute the contents with external users, hope it can help you.

Best Regards

Rena