My steps so far:
I made an item enchantment
put it on an item
obtained that item in game (and verified that it works as intended)
enchantment is now in my list of know enchantments
I can't enchant anything with it.
I can't find the place where it is defined on what item type an enchantment can be applied. Where do i define this?
In case it matters for wacky skyrim bug reasons:
It's a fortify destruction enchantment.
All interfaces including the automatically generated display % of increased damage indicate that it works. Spells also show higher numbers in damage when the ring is equipped. I figured using fortify archery as base would be the most logical for gameplay and engine reasons.
It's the first time i am messing with the creation kit. So i have no clue what is going on or what kind of other information might be useful.