Replace existing notification in Android

How do i have to configure a notification sent to my phone in order to replace an existin one?
Using the channel option doesnt work. Is there a way to set a kind of notification id, and notifications with the same id get replaced by the latest one?

This is done with the tag option. A notification with a tag will replace a notification with the same tag.

See here:

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thx i will give it a a try