> For the complete documentation index, see [llms.txt](https://sync.wiki.mksdtech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sync.wiki.mksdtech.com/collaboration/end-collaboration.md).

# End Collaboration

Leave the session, release your objects and close your local copy.

End collaboration when you're done working on the central file.

<figure><img src="https://2088031227-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FMFZITZJW4MHLYhDLac3k%2Fuploads%2Fgit-blob-5652f6101b45bb1f3060e46140b0856c1e9ccb04%2Fmock-toolbar-end.png?alt=media" alt="The End Collaborate button in the Sync panel" width="412"><figcaption></figcaption></figure>

{% hint style="success" %}
Rhino command: `EndCollaboration`
{% endhint %}

## End your session

1. Click **Synchronize** to share your last changes.
2. Click **End Collaborate**.
3. Click **Yes** to confirm.

If you still hold changed objects, Rhino Sync warns you first.

<figure><img src="https://2088031227-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FMFZITZJW4MHLYhDLac3k%2Fuploads%2Fgit-blob-0e81198249365291885885ef345f27266f79176c%2Fmock-end-confirm.png?alt=media" alt="Unsynchronized Changes warning" width="343"><figcaption></figcaption></figure>

Click **No** to go back and synchronize.

## What happens

* Rhino Sync disconnects you from the server.
* Every object you held is released.
* Your local copy closes and Rhino Sync deletes it.

{% hint style="danger" %}
Changes you didn't synchronize are lost when collaboration ends. They aren't in the central file, and the local copy is deleted.
{% endhint %}

## Other ways a session ends

* Closing Rhino, or closing the model, ends collaboration without asking.
* Opening another file on Windows ends collaboration. Rhino Sync asks you to confirm first. Importing or merging a file doesn't end it.