Note
Before proceeding to read the Advance Sandbox article. It is advised to read the Basic Sandbox article to understand the basics of sandbox functionalities.
In the advance sandbox, we have four stages, i.e., Dev (development), QA (quality testing), UAT (user acceptance testing), and Production (live). All users, i.e., Organization Admin, Workspace Admin, and End-Users, will have access to the live environments.

The Organization Admin has access to all four stages and can switch between them as required. The Workspace Admin has access to the Dev stage and Live stage by default. Access to QA and UAT stages depends on whether the Workspace Admin has been granted permissions for testing purposes. If access to QA or UAT is not available, testing can still be performed in the Dev stage. In all cases, Workspace Admins can test their creations.
End-users, who are non-citizen developers, have access to the Live stage by default to perform real-time transactions and interactions. If permissions are provided, end-users can also access the QA or UAT stages and participate in testing the created or modified artifacts or solutions.
