Hi Abigail,

I understand that you have mistakenly entered an incorrect college admission date while filling up the application form for some organization and so to answer your question you would be able to rectify your mistake if there is a scope of a correction window that might be opened by the concerned authorities.

If there is no such window then I would like you to address this matter to the appropriate authorities by post or by mail while clearly stating your issue and request them to make changes that are necessary for your candidature.

BEST WISHES!