Are you looking for the Notification Access permission on a Tecno mobile phone? Notification Listener Service is also known as Notification access permission for Android. Apps with this permission can receive calls from the system when new notifications are posted or removed and manage them as well, such as reading, dismissing app notification. Generally speaking third-party apps may not require this Notification access permission. And you should not grant an unknown app this special permission on your mobile phone. Anyway if you do need to grant an app the notification access permission, here is how to find this setting and allow certain app the notification access permission on a Tecno Camon 15 mobile phone which is running on Android 10. It may differ across various phone models.
Open Settings on your Tecno phone, choose Apps & notifications, then Special app access.
Once selected, the Special app access screen opens with various advanced permissions and access as shown below.
Find Notification access from above list. Tap to open it in a new screen. Here you can see a list of apps which require this special permission on your phone.
You can touch the ON/OFF toggle besides an app to enable or disable the notification access for it.