The is the sort of thing you are likely to get an answer for much faster on the forums Blueprints section
https://forums.unrealengine.com/forumdisplay.php?6-Blueprint-Visual-Scripting
Rama
i have a particle blue print of a fire wich has a large sphere attached to it and im trying to make it so when character enter that it will gain warmth over time but i cant figure out how i should do that, my hypothermia meter is made from tesladevs hunger meter.
i already have a thread there "/
I would make the particle effect part of another blueprint called campfire or something. put the collision sphere on the campfire blueprint, and call the enter and exit events there, rather than on the particle system. You will have to get the player controller, cast to the player, then update the value you want on the player there. Not sure if you can do any of that on a particle effect.
Just curious, did you figure this out?