Aside from the build, test, and telemetry collection features of App Center, the main feature of App Center is to manage the distribution of prerelease applications, as well as automate submissions to public and private App Stores.
Distribution with AppCenter
AppCenter releases
Once the application package is pushed from the build pipeline to AppCenter, an application release is created. This release represents a version of the application package. This package can be distributed to a distribution group within the current distribution ring or an external distribution target:
When a release is created, this release is accessible by the collaborators group (that is, developers who have management access to AppCenter...