If your account is not locked, then it's not open because it's new. You can get the Web App transfer market open by playing games, here's how you can do it:



Play 3 full matches in FUT Mode and log into Web App or Companion APP within a calendar day. Normally, keep playing 2 active days would get unlocked. But you share your device with your friends who also play FUT games, it may take 4 active days or more days. So it depends on the number of FUT accounts used on a device.



You can watch the Video to learn about it:https://www.youtube.com/watch?v=oEqjFhEO32U