In 4.3 and under the first time you tried to do a team based action, such as refresh provisioning profiles, it would ask you to log in. It no longer does this in 4.4, it just assumes a team and refreshes... how do I teach Xcode there are multiple teams? It lists them under the teams in side bar of the organizer, but won't let me refresh their profiles, or select them when creating new profiles.
To clarify, each team is under a different developer ID, and I can't find any way to log in to different developer IDs to refresh the provisioning profiles. I can still log in to different ID's when submitting apps to the app store, however this doesn't seem to affect the provisioning profile refresh login ID.
Seems to be fixed in Xcode 4.4.1 (released yesterday, 7th August 2012). And as Ivan stated correctly: It seems that all profiles from all teams are synced as long as you have the same apple id across all teams. (Tested this by removing all profiles from Xcode in the Organizer and hit "Refresh")
Update:
If you have different apple ids across multiple teams and the login dialog is still missing, you might have saved your credentials in your keychain. See comments #2 and #3 of this answer for a workaround.
There is a strange way to add a new identity (user/pass). If you build and archive and then go to Distribute -> Save for Enterprise, then open the Code Signing Identity list there will be an item marked "Refresh code signing identity" at the end. If you select it you'll be prompted to enter username and password. Hope this helps.
For reference, since I found this page searching for XCode 5.1 - getting XCode to sync new teams on the same Apple ID, click 'View Details' on any teams that are there to see the provisioning profiles for that specific team, then hit the refresh icon. It will also download any new teams added to the ID.
来源：https://stackoverflow.com/questions/11424986/how-do-i-change-teams-in-xcode-4-4