Steps
- Open History and tap the trash icon at the top.
- Tick the entries you want to remove, or use Select all.
- Confirm the deletion.
You can also swipe an entry to the left to delete it.
Tips
- Deleting from History does not delete anything from the sender's app.
- To clear history on a schedule, use Remove notifications after (see "How to delete old history automatically").
- Create a backup first if you may need the entries again.