Once a form has been submitted, the school may process it at any time. This means that you will not be able to edit or update a form after you have submitted it. Please make sure that you check every form carefully before its submission. If there is information that absolutely needs to be changed, please contact the school directly. The school can then "unsubmit" the form, which will allow you to access, make the necessary changes and resubmit.
If the form is a common form, once it is submitted it will no longer be editable for the school where it is submitted as well as the other schools you are applying to who use this common form. If you need to edit a common form, you must contact all the schools where that particular form was submitted (the form says “submitted” with a green check mark). Each school who has received the form can then "unsubmit" the form, which will allow you to access, make the necessary changes and resubmit.