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Editorial Team
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Asked: 2026-06-16T13:49:21+00:00

I am confused about GCM Sender ID and API key. I’m responsible for building

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I am confused about GCM Sender ID and API key. I’m responsible for building 3rd party server that will send notifications to Android app.

Which one do I have to store on server side? API key or Sender ID? Who is responsible for creating both, Android developer or me?

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1 Answer

  1. Editorial Team

    I’ve kinda figured it out on my own:

    1. API key is generated on console and is used by 3rd party server to authenticate/authorize with GCM.
    2. Sender ID is used by Android app to register a physical device with GCM to be able to receive notifications from GCM from particular 3rd party server.
    3. Registration ID is a result of registration of physical device to GCM with Sender ID.
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