The FAA will not enforce airman medical certificates which expire between the dates of March 31, 2020 and June 30, 2020. The period of non-enforcement will be in place thru June 30, 2020. The specific language for this enforcement policy can be found here.
To override your Crew member's Medical Certificate in the system, please follow these steps:
Step 1. Pull up the Pilot's profile from the "Training & Currency" dashboard and click on their Name.
Step 2. Select "Medical Certificate" -> Check off "Override" -> Enter "Valid Through Date"-> Override "Reason" -> Save.
Once the "Override" is saved, you will see the Override enabled message on Medical Certificate.