I am sure this is an easy one, but somehow I cannot come up with an elegant idea to tackle this one.
I have a workflow that informs our two warehouse teams about incoming shipments. At times, I only have email notifications for one of the two teams (lets say the 416 team). I would like to generate an email notification that says "No incoming shipments today." if the warehouse is not in the dataset. So, in simple terms, I would like to say if 631 is not listed in the Hub column then send an email to 631.

Ideas?