you cannot link until your Ecas not Available.Reading here about ECAS I am getting it’s like linking your file online - I haven’t done that yet - is it mandatory? I submitted my application in June and received request for 5406 in Nov which I resubmitted via email next day and not heard anything for last 3 months.. should I just sit tight - mapping my file online helps?
if your Ecas available pleaes link PR file to myCIC account to get all update .like Bio/ medical etc....
Linking to myCIC is not mandatory.