From what I think that application assignment due date is that this file must be assigned to the officer before that date. Bcoz I received AOR in Feb but my application assignment due date was in Mar.I applied for a CBSA note a couple of weeks ago and got the result. It's pretty much the same as what is on my cic account (Eligibility - not started, Criminality - Passed, Biometrics, Medical - Passed, Expired). What's interesting though is that there's an Application Assignment due date (2022-08-10). I wonder if this is the due date for the case officer? lol.