Register a device token to the SendBird server. It includes our Android sample code.
Can’t receive the push notification?
Check your push notification setting turned on (https://dashboard.sendbird.com >Application > Notification Tab).
Did you correctly register APNS/FCM credentials?
Did a user generate a correct device token using the right certification and senderID?
Did a user correctly register device token via your app?
You can check a user device token here: https://dashboard.sendbird.com > Users >(search a user with ID or nickname) > check > Push Token
Is a user in a group channel (not an open channel)?
Is a user offline at that time?
Did you check a user/a channel push notification preference option?
User’s power save mode may delay a push notification.
Push notification flow?
Suppose that sender and receivers are in the same group channel.
Suppose that you register APNS/FCM credential (https://dashboard.sendbird.com >Application > Notification Tab)
Suppose that the users in the group channel are offline.
How to (un)register a device token?
Whenever a user connects to SendBird, register the device token.
When the user logouts your app and before the user removes your app, unregister the device token.
If you don’t want to use multi device tokens (Only a current user on a device can use push notification), unregister the current token and register the new device token with unique = True.
What is the message length limit of push messages?
The standard push notification message length limit(iOS and Android) is 4KB. But we add some additional payloads to the push notification. The additional payloads depend on your message variable such as message text field, data field, etc. So, it’snot exact 4KB (It’s less than 4KB).
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