Google stopped serving Android Nearby Notifications late in 2018 but kept the Nearby API working for use within apps. Google has now deprecated the Nearby API that allows you to associate beacon ids with arbitrary content such as a link or multimedia data. It will be shut down on April 1, 2021.
No, it’s not an April fool joke but instead another useful thing killed by Google. Apart from Search, Cloud, Gmail and perhaps Android it’s risky to base your business on anything provided by Google. Unless it’s an offering through which Google itself depends for income then you can’t depend on it sticking around. Instead, businesses should look to create their own APIs.
This shows the easy route isn’t always the best route. Think about your project dependencies. It is likely the platform you depend on will exist for the lifetime of your project? How is the platform funded? How is the company that provides the platform funded?