Custom Event based on a Bool from a Different Blueprint

Hey guys, here’s my issue:

I have a blueprint that is, effectively, a keypad. When the correct input is made, I have the blueprint (HarpKey1) marking a bool, “Solved?”, in that blueprint as true. I made an object in the level using this blueprint. Now, here’s the trick I’m getting stuck on. I’d like to make a Custom Event that will trigger when this HarpKey1 “Solved?” Bool is true.

Possible Work Around: My partner came up with an interesting work around that will essentially activate an existing trigger volume that encompasses the room our main character is in when the bool is marked true (all within the one HarpKey1 blueprint). Then, we can say when the player overlaps the now activated trigger volume do something, like open a door or a chest or a secret of some kind. Haven’t tried this solution, but it seems like it might work. I’d still like to know if we can make a custom event based on a bool in another blueprint.

Use a blueprint interface to allow your blueprints talk to each other to trigger events, including custom ones. There are very good tutorials on how to use them in the Blueprint Quickshot videos on Unreal Engine YouTube channel. You would want to check the 8th and the 9th videos.

Much appreciated, sir!