you need a reference to the door that your trying to affect. you could do this by using traces, overlaps, public variables, or another method, it really depends on your situation. give some more info on your use case and i can give you a more specific answer.

You can refference the door in the Level blueprint (just drag and drop the actor from the editor to the blueprint)and from there send it as a variable to Game instances,Game modes or ThirdpersonCaracter. In Game instances,Game modes or ThirdpersonCaracter don’t forget to check if the value is valid. …

Casting to the Actor Blueprint

Development Programming & Scripting Blueprint

Felix_Leonhart (Felix Leonhart) June 20, 2018, 2:26pm 12

my small mistake - the Casted Door should connect to Door Ref, not the hit actor