In our case, we got AIP on 4 May 2017, then we got SA on 15 May 2017.
Under ECAS ours displays the following:
Sponsorship Application says "Decision Made"
Permanent Resident Application says "Application Received"
In My CIC this is what is currently displayed:
Application status We received your application. We will send you a message when there is an update or if we need more information from you.
Review of eligibility We are reviewing whether you meet the eligibility requirements.
Review Medical results You passed the medical exam.
Additional documents Not applicable.
Interview You do not need an interview. We will send you a message if this changes.
Background check We are processing your background check. We will send you a message if we need more information.
Final decision Your application is in progress. We will send you a message once a final decision has been made.
I don't know why, but CIC is not always updating their systems, whether it's ECAS or the "mycic" account.
My ECAS (Sponsor) shows
decision made on both sides since March 20, 2017 and we got SA and AIP on that same day. Then DM on March 21, 2017. On May 12th, we got the landing appointment letter, and my wife will land this Friday, May 26th. But look, this is the "mycic" account of my wife:
Application status We received your application. We will send you a message when there is an update or if we need more information from you.
Review of eligibility We are reviewing whether you meet the eligibility requirements.
Review of medical results You passed the medical exam.
Review of additional documents Not applicable.
Interview You do not need an interview. We will send you a message if this changes.
Background check We are processing your background check. We will send you a message if we need more information.
Final decision Your application is in progress. We will send you a message once the final decision has been made.
So even having SA, AIP, DM and landing appointment in hands, the mycic status still states that they are reviewing the eligibility and that they are processing background checks...