Want to know which model applications your users have access to in Dataverse? Check out the app access checker that is available within the Power Platform admin center. Enter a users Id or email address and see the list of published apps in your environment and all the access, license and security information specific to that user. This can be a very useful tool in troubleshooting why a user cannot see a specific app in your environment.
Below are the different ways you can access the app access checker.
You can access the app access checker directly using a url. Here is the format.
https://<Your Org>.crm.dynamics.com/WebResources/msdyn_AppAccessChecker.html
The information returned to the page comes from a single WebAPI call. If you will to call it yourself and create your own page you can do so.
https://<Your Org>.crm.dynamics.com/api/data/v9.0/RetrieveUserAppDebugInfo(UserIdOrEmail%20='testuser2@rawonet.onmicrosoft.com')
Original Post http://www.richardawilson.com/2021/06/model-app-access-checker-for-dataverse.html