How can I do something when a variable is changed, without using RepNotify?

Is there a way? Am I right in assuming using RepNotify would not be the correct way if the variable doesn’t need to be replicated?

mmm use an accessor to the variable and launch a event? or have a list of subscribers tonotify? (thought dont know if UE already handles this in the events…)

Well, for the variable to change I’d assume you’d have a “set” node for that variable, right? Maybe try making a custom event after that and fire off that custom event wherever you need to.