Sorry explained it badly.
If you want the item you’re spawning to inherit the normal, then you can say
Which gives you
So the Z, indicates the way the spawned item is facing.
Maybe I’m wrong, but I’m assuming you want the orientation to be reflected in the normal, like something bouncing off the wall? Then you would need something like
which gives
The thing I’m spawning is just a BP with the 3 axes in. I’d recommend using something like that to get your angles the way you want them, then switch to the particle. Because particles quite often don’t follow the spawn orientation, and you don’t want to deal with that while you’re trying to troubleshoot the spawn angle 