To troubleshoot push notification issues, verify your device tokens and server configuration. Test notifications using tools like Postman or Firebase Console to ensure they are sent correctly.

Troubleshooting push notification issues can be a challenging task, especially in cross-platform applications where different operating systems handle notifications differently. Start by verifying your device tokens to ensure they are correctly registered and active. If you’re using a service like Firebase Cloud Messaging (FCM), check the server configuration to ensure it’s set up correctly to send notifications. You can test your notifications using tools like Postman or the Firebase Console to see if notifications are being sent without errors. Additionally, examine the app's permissions; ensure it has the necessary permissions to receive notifications. Look into whether notifications are being blocked by the device settings or by user preferences. Debugging tools can provide insights into whether notifications are arriving and being processed correctly. If issues persist, consult the documentation for your notification service and engage with developer communities for advice specific to your platform. Regularly updating your app and its dependencies can also help avoid compatibility issues with notification services.