Hello - I am in the same boat now in BC PNP, but this is what it says on BC PNP guidelines though - "
If your application information differs from your registration information, resulting in a decrease in your total registration score, and your revised registration score is below the minimum draw score at the time you were invited to apply, you should withdraw your registration and submit a new registration with correct information. This is done using your existing profile. Should you proceed with submitting an application, your application will be refused
If your application information differs from your registration information, and the differences would not decrease your total registration score below the minimum draw score at the time you were invited to apply, or would result in an increase in your total registration score, you may choose to keep your original registration and proceed with submitting an application."
and I guess this will apply for CEC applicants as well, again I am not sure I am still doing my research. I fully understand that you have 60 days to complete the application, any changes in your application from the date of ITA and submission of PR application can significantly affect your score. It makes sense not to decline the ITA because the changes did not decrease your score, you also did not do any misinformation in your EE profile, but make sure you submit the application after completing the number of weeks and back up your application with a Letter of Explanation. I found a thread re: this and most people didnt have any problem, and got their PR:
https://www.canadavisa.com/canada-i...rd/threads/received-ita-problem.589432/page-2