# coordinateWithSession(_:) Begins coordination of a player with a group session. ``` func coordinateWithSession(_ session: GroupSession) where T : GroupActivity ``` ## Parameters `session` The group session with which to coordinate playback. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)