What are the most common mistakes using the app?

You need your employee number: The employee number is the number you use to log into CORE.  Double-check that your employee number is correct when inputting it into the app.

The app asks for the state's code: Your state's code is ctstate

If you are using the desktop app, and haven't yet created an account, scroll to the bottom of the page to find the button to create an account.

At this time, once you've submitted your vaccination information, your screen will list today's date as your vaccine completion date. We know that's not accurate, but you haven't done anything wrong. The vendor is working on correcting this.