I just filed yesterday (Saturday) and noticed that I omitted something this morning. Can I restart the app and refile? Will this new filing replace the one that I sent?

[fuzzy · Accepted solution]

No.  You cannot re-submit or re-file your return.  There is only one submission of a return allowed per social insurance number.  Wait until you receive your Notice of Assessment and then request an adjustment to your return.  For more info, please see http://www.cra-arc.gc.ca/tx/ndvdls/tpcs/ncm-tx/chngrtrn-eng.html