then you don’t need an Interface.
In your Point Effect BP, add a Variable Points. Click on that variable and in its Details set “Expose on Spawn” and “Instance editable” to true.
now, when you spawn the BP, you can pass in the points directly in die SpawnActorFromClass Node.
Interfaces are a way to deal handling of values between unknown types of Actors… like… Player and 50 types of enemies/npcs/interactables… but if you spaen the pointeffect on hit… just give the value on spawn