@ArtsyPowerApper shows how to use a new feature called "Trigger Conditions". Trigger Conditions can be added to any Trigger step in order to constrain the trigger to only fire when the expression is true. Since the conditions can look intimidating to new users unfamiliar with advanced expressions, I wanted to give you a few tips (and tricks) so anyone, and everyone, can leverage the new feature!
Side point: In the slide with sample conditions, the one using [Created] would not work with this New Logic Apps feature because Created can't be changed. However, that is a valid condition to use in a Flow elsewhere. :)
Huge kudos to John Liu who first tweeted this out for the Flow community!
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Enjoy this gift from Logic Apps and Microsoft Flow!
Audrie