Google Pixel 3a - Delete Messages

  1. From a Home screen, touch and swipe up to display all apps.
  2. Tap Messages Messages app icon.
  3. If prompted to change the default SMS app, tap NEXT > YES to confirm.
  4. From the Inbox, touch and hold a message.
    Note To select multiple messages, tap additional messages to be deleted.
  5. Tap the Delete icon Delete icon (upper-right).
  6. Tap Delete to confirm.