If you have just installed your system, attempt to trigger a test alert by placing sensor on a wet napkin. If you are not receiving alerts after this time period has passed, check your Wally contacts list in the account section and verify that the information is correct. On your mobile device, access the notification center in your mobile settings to check if push notifications are enabled for the Wally app. If the problem persists, please contact customer support at support@wallyhome.com.