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Asked: 2026-06-02T03:34:30+00:00

I am having some problems in doing C2DM, I research a lot, but i

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I am having some problems in doing C2DM, I research a lot, but i did not get the proper way to do it. So i am asking a question.
My Questions are:

1). What is the difference between Registration Id and Device Id?

2). Is it Required both the id’s for push Notification?

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  1. Editorial Team

    Registration ID

    An ID issued by the C2DM servers to the Android application that
    allows it to receive messages. Once the application has the
    registration ID, it sends it to the third-party application server,
    which uses it to identify each device that has registered to receive
    messages for a given application. In other words, a registration ID is
    tied to a particular application running on a particular device.

    You can find the source of Registration ID here.

    Device ID might be the unique identification ID of a particular device, as in IMEI/IMSI number or something of the sort.

    AFAIK, both are needed to get C2DM working.

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