The offcier at the border can't correct the mistakes. Complete the landing and point it out to the officer during the landing.
And when you're done you can have the information corrected.
Please refer to this post:
Hi Toby,
I have the same mistake regarding my original date of entry during my landing on Saturday. I was looking at the guide to amend this information. And I notice that they request following info on the document checklist.
" 3. Photocopy of one (1) piece of government issued or internationally recognized identification from outside Canada before your entry to Canada indicating that an error was made in recording your information. This could include:
your marriage certificate, if applicable,
your school records, identity cards, or other government-issued documents from outside Canada prior to your entry to Canada,
your birth certificate."
Do you know if it is mandatory to submit this if I just want to change the original date of entry? And do I need to provide any documents to support the correct date? In addition, when filling out the form, under 'Part B - Information to be amended', do I need to fill out every single information (eg. name, birth date, etc.)? Or just the original date of entry box is fine?
Thank you very much for your help!