There are 2 ways to delete the notification.
A.Delete on the notification list page
1.
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Tap the ”Notifications".
2.
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Swipe left on the notification you want to delete.
3.
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Tap the ”Delete".
B.Delete on the notification body page.
1.
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Tap the ”Notifications".
2.
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Tap the notification you want to delete.
3.
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Tap the ”Delete".
4.
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Tap the "Delete" when a confirmation message appears.