I hit my approach shot slightly long and ended up 3 feet onto the back fringe. My ball mark (which was pretty substantial) was 1 foot onto the back fringe. I would like to putt my next shot, but I am under the impression that I am not allowed to fix that ball mark. Is that correct?
Follow-up: What if the ball is off the green and the mark is on the green?
Follow-up to the follow-up: What if the ball is ON the green, and the mark is off the green? (One of those putts where the contours of the green force you to go through the fringe)