Scope: this concerns Azure AI Personalizer, not Azure AI services generally.
Verified change
Microsoft stopped allowing new Personalizer resources in September 2023 and will retire the service on 1 October 2026. Current Microsoft guidance recommends migrating to the open-source Microsoft Learning Loop.
Required action
Inventory Rank and Reward API dependencies, export models and learning settings where needed, and replace the hosted Personalizer loop before retirement.
Boundary and limitation
Microsoft documents the retirement date and replacement guidance but does not provide one universal migration design for every application.