Make Eternal Bonding Required Items More Clear
We just had to reschedule our eternal bond because we didn't know that you need to keep the blank invitation. We created all 40 invites from it, so then we thought that it was no longer useful and discarded it. Then because we didn't have it any more, the game wouldn't let us start the ceremony.
The eternal bond quest very explicitly tells you how important the Promise of Passion bracelet is, to make sure you don't lose it, always keep it equipped, etc. but there's nothing like this for the blank invitation.
Along with making it more clear how important this item is in the quest/registration process, it should also be mentioned in the item tooltips. The invitation and bracelet should not be discardable unless you cancel the quest directly as well.