Summary
Due to the change of the Dropbox folder location, storing the Dropbox folder on an external drive is no longer supported by macOS.
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To move the Dropbox folder to a different location, the Computer Backup feature must be disabled.
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To fix syncing problems, users need to check the internet connection, make sure Dropbox supports the device, give Dropbox full disk access, check the date and time on the device, check the sync status, keep the Dropbox desktop app open, close other applications, check file names, and make sure the file is saved to Dropbox.
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To save hard drive space, users can adjust their Dropbox settings so that online-only files have both logical and physical size set to zero.
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Summary
Changing the location of your Dropbox folder is no longer supported by macOS. Due to the change of the Dropbox folder location, files that were previously linked in some third-party applications will need to be linked again. Storing your Dropbox folder on an external drive is no longer supported by macOS.
Dropbox won't be able to sync to external drives on macOS
appleinsider.com
Summary
This article explains how to move a Dropbox folder to a different location on a computer with your Dropbox preferences. The Computer Backup feature must be disabled in order to move Dropbox files, and users need some disk space to move the Dropbox folder. The article also provides instructions on how to manually move the Dropbox folder back to its default location on Windows and Linux, or manually move the folder back to its default location on macOS.
Move the Dropbox folder to a new location | Dropbox Help
dropbox.com
Summary
This article covers basic fixes for Dropbox sync issues and startup problems. It explains how to locate Dropbox, check the internet connection, reopen or refresh the website, make sure Dropbox supports the device, give Dropbox full disk access, check the date and time on the device, check the sync status, keep the Dropbox desktop app open, close other applications, check file names, and make sure the file is saved to Dropbox. It also provides tips on how to troubleshoot any issues that may arise.
Fix syncing problems in Dropbox | Dropbox Help
dropbox.com
Summary
Dropbox Smart Sync is a feature of the Dropbox desktop app that allows users to make files online-only so they can save hard drive space on their computer. It can be done manually or automatically, and files that are not regularly used will take up space on the computer's hard drive. To save hard drive space, users can adjust their Dropbox settings so that online-only files have both logical and physical size set to zero.
How to use Dropbox Smart Sync to save space | Dropbox Help
dropbox.com
Stop worrying about hard drive limits. Sync only what you need, and access all your files ... Online-only files use just a small amount of hard drive space to ...
Smart Sync lets you work without limits
dropbox.com
