Use this activity to check firewalls. Ensure that the Mobile
Notification Service is protected by firewalls. Since push
notifications require changes to firewall rules, verify that the
Mobile Notification Service can call the Notification Hub
for each mobile app.
If the firewalls are incorrectly set up and prevent calls from the Mobile Notification Service, adjust the settings to allow communication. This ensures that the service can function properly.
Refer
to the technical documentation for further details:
Troubleshooting Synchronization
This activity has no system effect.