can you please provide your source of information for completeness check?Guys PSA, PLEASE stop worrying about mistakes and errors in your application, IRCC has announced already that if you have any proof of education, any proof of employment, language test results proof and the form SCHEDULE 3 you application will NOT BE REFUSED and they will ask for forms and documents which they need and we already have seen the proof of them asking for it and if they don't ask for it you think it might be misrepresentation later on in time, just send Webform because at this time the whole IRCC knows that ample number of mistakes have been need in this pathway. So please worrying about this and lets wait for next steps.
Whenever you get worried about the mistakes you have made, just think about the 'completeness' check they mentioned.
Hope it helped because this did help me.
thanks