I have received one as well: "Mar 25, 2023 - We sent you a message about your applicationGuys, My tracker shows "last updated on March 20". But I saw a new update this morning: "March 24, 2023 - We sent you a message about your application. Read the message carefully and take appropriate action as necessary." However, I haven't received any email from IRCC or any updates in my GcKey.
I noticed a few other members post about this as well - Has anything changed for you? Did anyone get a portal email or any updates from IRCC?
Read the message carefully and take appropriate action as necessary."
For the record, everything in my application is showing "completed" on the tracker.