Why Are Android Impressions Dropping?

Problem

The Android impressions for campaigns are decreasing.

Explanation

The following are possible causes for the decreasing Android impression:

  • The app may not be sending the notification received events due to an integration issue. 
  • The segmentation criteria might differ for campaigns with lower impressions.
  • The number of sent notifications could be lower.
  • There may be changes in the App and SDK versions.
  • There may be changes in the Device models.
  • Users may have blocked notifications at the operating system level.
  • Network issues may prevent users from connecting to Google Cloud Messaging (GCM).
  • The notification's time to live (TLL) may expire before delivery.
  • There may be a delay between when the app is uninstalled and when GCM marks the device as inactive.
  • An external firewall might reject incoming packets due to security settings.

For more information, refer to Why users are not receiving push notifications sent by you?

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