URGENT QUESTION PLEASE HELP

<p>I recently submitted my common application to all my schools and realised I made an error in the activity section and wanted to change something. I also realised that I could still edit (like the edit button was still there). So I have 2 questions:</p>

<p>1) If I edit it now, will this final version be seen to the schools? I thought you can't edit anything once you paid and submitted?</p>

<p>2) And does anyone know how common app actually works from school's perspective? Like do they track you making changes or something?</p>