With the new GotSport Software teams no longer will be uploading Rosters to the league. Rosters are being Cloned by the league from your home association. The "Notify Button" and a message in the message box will be the way of communicating changes & updates for Home Association & League.
You should check with your league to see what procedures they are going to use.

How to Notify "Registrar" Roster is Ready / Changes to your Roster.

Changes to your Roster starts with your Registrar:

• Notify Registrar of Roster Changes so your Official Roster can be updated & approved.
• Once Roster is updated
• Login to GotSport Team Account
• Click on Team Management > Team > Team Registration
• Choose Home Association Event
• Click on Notify Button Upper Right Hand Corner
• Once Notify Button is Activated the Yield Sign will appear.
• Post a Message in Message Box of Updates made to roster
• Notify Yield Sign will be cleared when roster is updated 
  with a message from the Registrar.