Great question @dotdev and welcome to the community. 

Another member had a similar question about 2 pop-ups. Check out the answer their question and might help with what you’re trying to do:

It’ll work if someone takes action on one of the pop-ups (then the other pop-up can check for profile properties).

For both of them showing at the same time on the site.  If there’s no easy answer, I’d ask what is the % of time you’ll think this would happen (I’d guess pretty low) and take the reward vs effort approach (especially if you’re a smaller operation).

Hope that helps!

Hey @dotdev - The signup form should have a filter that says “Show once per session” or “Show once ever.” This should prevent multiple triggers in the same shopping window.