The Inbox is where notifications and direct messages are found on TikTok.
To filter inbox notification:
1. Go to Inbox.
2. Tap All activity.
3. Filter by Likes, Comments, Mentions, Followers, or From TikTok.
To customize push notifications:
1. Tap Profile in the bottom right.
2. Tap the 3-line icon in the top right.
3. Tap Settings and Privacy.
4. Select Push notifications.
5. Select the notifications you'd like to receive.
Note: If you do not wish to receive any notifications, you can change the notifications settings on your device.