Hi @vitosik, I'm the author of question in your link, I don't receive any documentation after granted by Apple too, but it's very easy to use it. In case you still didn't know how to use it, please follow these step: Edit your provision file on apple developer site: add NSE filtering iOS entitlement to your provision (Notification Service Extension provision, not your main app provision). Add <key>com.apple.developer.usernotifications.filtering</key><true/> to your entitlement file, if you don't have it, create one and config it in project setting, at Code Signing Entitlements (and of course, select your Notification Service Extension target, not main app). Call contentHandler with empty UNNotificationContent to silent origin notification. If it's not clear enough, please see Signal - https://github.com/signalapp/Signal-iOS project for more information