An Insight is considered to be acknowledged when the user has seen or interacted with the Insight, without resolving
the it. An acknowledged Insight is relevant for the user and should still be visible.
However, acknowledged Insights have a lower priority than un-acknowledged Insights in the user-interface.

If a request is made to acknowledge an already acknowledged Insight, it will not be acknowledged again (i.e. the acknowledgedAt property is not overwritten).

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