1. AC Question's Avatar
    I have already publish app in google play service but I haven't stored the gcm id of devices that downloads the app in this version .. Now I want to publish newer version of that app and what I want is to send the push notification to those users who have already downloaded app.. I need gcm id but have no idea how to get that since I haven't stored them. Is there any other ways to get gcm id...
    04-20-2015 06:20 AM

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