The last two times the window closed you couldn't add yourself to the system, but if you were in the system you could continue to update your profile. I am very familiar with this since I took eight months to make sure my logbook and everything were as accurate as possible. It took me a few hours to input my stuff when I did originally try to submit. The window closed while I was inputing. I was that guy. When I hit submit it said we are no longer accepting pilot profiles. The original link I hit to enter my info also said we are no longer accepting pilot profiles. You probably heard me scream.

It all worked out in the end and I eventually was hired by FedEx.

If you are interested in FedEx put in your name an SSN. Then update your profile later. This way you are in the system. People can do recommendations on you if you exist, and you are not locked out. From experience the system does have periodic maintenance. They haven't roundfiled profiles to my knowledge. Trashing profiles would alienate canidates, and make people reaccomplish letters of recommendation.

Good luck, and don't be that guy.