If an item has been purchased and credit card paid without assigning it to a student, is there a way to go back & edit the purchase to assign the purchase to a student

I know it should be done first before the payment----but we have several times not assigned the student and it would be so helpful to be able to fix it

It would be so helpful to be able to put the sale into the students account to be able to keep an accurate log of all of the students transactions