**UPDATE (2014-09-30):** In response to feedback from developers, we're delaying the breaking change to the["Add team member" API][add-team-member] until Monday,**October 6, 2014**. The change will go into effect for all requests on that date.

Starting October 6, if you use[the "Add team member" API][add-team-member] to add a user to a team and that user isn't already on another team in your organization, the request will fail. To avoid this, be sure to use the[the"Add team membership" API][add-team-membership].

Starting October 6, if you use[the "Add team member" API][add-team-member] to add a user to a team and that user isn't already on another team in your organization, the request will fail. To avoid this, be sure to use the["Add team membership" API][add-team-membership].