2 Limitations

2.1 File types blocked by Sync

The following file types are blocked by Sync:

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Note: Hidden folders will be synced. Hidden files are not synced.

Versions Affected: All

2.2 Long file paths

Windows does not allow file paths longer than 256 characters. For this reason, Box Sync for Windows will not download any files that result in a path length of more than 256 characters. To prevent this, we recommend moving folders on Box to limit deep folder hierarchies.

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Versions Affected: All Windows

2.4 Mac bundles

Many files on the Mac are stored as "bundles", which is a folder that OS X is able to interpret as a file. This includes many iWork files, Mac Apps, NIBs, and more. Box Sync will not upload these files to your account.

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Versions Affected: All Mac

2.5 Links & aliases

Links and aliases are not officially supported by Sync. For example, Cross referencing links in Excel documents would be broken upon syncing to a different computer.

Versions Affected: All

2.6 Characters blocked by Sync

Sync does not support files or folders that contain any of the following characters:

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Versions Affected: All Sync

2.9 Virtual Environments

We currently only support installing and syncing to the internal harddisk on the native operating system. Virtual machines and virtual user profiles are not currently supported.

3 Recommendations

3.1 Do not sync a large number of files and folders

Syncing a large number of files and folders can degrade your computer's performance. For this reason, we do not allow users to exceed the limits below:

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Roadmap: We plan to increase these numbers for future versions.

Versions Affected: All

3.4 Do not install on Windows or Mac Servers

Although some users have reported successfully installing Sync on Windows and Mac Servers, this configuration is not officially supported by Box.

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