I need to know how long does rkt covered in fondant last. TIA

a good while. rkt are full of sugar, the fondant will seal it so it it protected that way too.
if its actually for eating though, id try not to go over a week. if its for paying clients, id try to keep things as fresh as possible.
xx

brincess_b, thank you so much. I wanted to make it Sunday for Thursday.