Some useful information and from official source (ATIP notes), but this is for my case, I cannot say that it is 100% right for everybody, but at least it gives some idea.
When we are able to link, the completeness check is done and the agent make a note that the file is ready for creation, in my case the notes was done on June 21 and the file created on June 24, (I linked it on June 26, but maybe I was able to link it on June 24 too
).
Then CIC requests info from CRA, I provided Option C and my SIN with my application, but it was mentioned income verification, so maybe the verified the information only without using my SIN.
Later when you see the second line in process it means that they checked your eligibility, whether you meet income threshold or no, marital status, and other issues related to eligibility and the agent makes notes related to your eligibility.
For a person (I don't remember) who was insisting, that I'll get biometrics request, whether my parent here is in Canada or no and it is matter of time:
I have the following note: PA is currently residing in Canada. No Biometric fee required. PO to review (I don't now the meaning of this). And in my biometrics fee part it was mentioned that the fee required was entered by error (I did not pay biometrics fees)
And then waiting time for: Case pending for officer review.
I am happy that a lot of people on this forum sharing information and not getting it only, as it is not ethical to get without giving