Something I may have missed if posted previously that I want to pass-along. We logged onto Delta to check in online 24 hours prior to departure like always, but we were unable to. The message read something like 'additional documentation required'. I am a pretty organized person, and have read up in detail here (thank you all!) and other sites but have not seen others state this 'problem'. We only live about 15 minutes from our little airport so I decided to drive over and check in. Luckily they were between flights with no line. The agent asked for our covid tests. Check! She reviewed in detail. After about 5 minutes of studying she asked for authorization. Check! She studied it in detail and said I should have something else with a barcode for her to scan. The only thing with a scanable code that was emailed to me was the insurance pass. She directed me to the ehas site and i informed her that is where I received all my other information and documentation. After about 20 minutes, I assume she decided she did not need what she was saying I should have, she checked us in and we now have our boarding pass. For a brief period I was concerned, but felt I had all my needed documentation.

Anyway, heads up that you may experience what we did and be unable to check in online. Hope this helps someone as much as others have helped us on this site by passing along info!!!!!