Re: How do I make a correction in my adword?
Welcome to the forum.
Find the ad you want to edit on the ads tab. Hover over the ad with your mouse. Click on the pencil.
You'll see a warning that this will delete the old ad and create a new one. In this case, since you are correcting an error, that is exactly what you want to do. If you were editing to make changes in the copy, I would recommend creating a new ad instead.
Best of Luck!