Error 401: GCM authentication error

Alemu Setargew's Avatar

Alemu Setargew

24 Mar, 2018 01:37 PM

When I try to send a message for all my app installed device the message status says "Error 401: GCM authentication error"
how to solve and what is the root cause of this problem.
10q for your help

  1. 1 Posted by Darryl Hnatiuk on 26 Mar, 2018 01:05 PM

    Darryl Hnatiuk's Avatar


    You'll only receive that message if one or more of your IDs is incorrect or have not followed the setup instructions correctly. So you'll need to go through the instructions again making sure you're following the steps exactly:


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