I have a list with a choice field, that has 20 different choices in it. Once three new items have been added that select the same choice, I want that choice to be eliminated from the list (or throw a customizable error to select another choice).
Is this possible?
If my explanation wasn't clear:
Let's say my choices are Red shirts, blue shirts, and yellow shirts. I only have three of each. If three people fill out the form and they all select Red shirts, then Red shirts shouldn't be an option for the fourth person to fill out the form (or should throw an error).