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.