If the app connects to a SharePoint list or Dataverse table that is shared broadly, then
users might access the app through those connections — especially if the app doesn't restrict visibility on the front-end.
Power Platform Admin Center – Can You See Access There?
You can see some environment-level roles and permissions, but:
As a co-owner of an app, your view in the Power Platform Admin Center will be limited unless you're an Environment Admin or Power Platform Admin.
Groups and roles tied to the environment, like "Environment Maker" or "System Administrator", might be granting access indirectly, especially in model-driven apps or Dataverse scenarios.
To check (if you have the rights):
Go to: https://admin.powerplatform.microsoft.com
Choose the environment → Settings > Users + permissions > Security roles or Teams
There you can see Azure AD groups, Teams, and Security Roles that might indirectly give access.
Bonus tip: Use PowerShell to audit app sharing
If you have tenant permissions or work with an admin, you can run:
This will show you exactly who the app is shared with — including groups.
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