Automatic Backup Stopped working

Hi there, Pixiesmoon. 

This usually happens if QuickBooks could no longer access the backup location. For example, if you're saving your backup in a USB stick/external drive which may no longer be writeable or accessible for some reason.  
 

You can unplug the drive temporarily and plug it back again. You can also restart your computer to check if that resolves the issue.
 

More guides and additional references for using QuickBooks for Mac are shared here: https://qblittlesquare.com/.

Keep us posted if you have other questions. The Community is always here to help. 

I have tried everything you suggested and it still won't automatically back up. I am at a loss here! 

Thanks for the update, @Pixiesmoon.

I'm happy to help you get the automatic backup working, but first, I need you to clarify some details for me. Is your QuickBooks company file open somewhere else? Perhaps on another computer or your computer is the second one logged in. 

If you're the second logged in, the QuickBooks Desktop information bar (in blue) will say Secondary, and the other login will say Primary. You'll need to close the second login before you can backup your company files properly. You can do this by going to the File menu and choosing Close Company. Then, you can start your company backup.

Feel free to hit the reply button if you have any other questions. Take care!

hi - I still get this same error - unable to copy company file - advice please

Thanks for posting your concern, charlie007.

I'm here to help you back up your company file in QuickBooks for Mac.

Mac has a built-in disk utility that QuickBooks uses to create a DMG (image) file when backing up company files. The error message you’re getting usually appears when something prevents this process from happening.

To help you detect the cause of the error, you can run a rebuild to resolve it.  

Check out this article that details the steps to run the verify and rebuild utilities: Resolve data damage on your company file

Once the rebuild completes, please verify the data again to ensure there aren’t any other issues in the company file.

If the error still persists, I suggest getting in contact with our QuickBooks for Mac Technical Support Team for further assistance. Here’s how:

1.    Click this link: https://help.quickbooks.intuit.com/en_US/contact
2.    Select QuickBooks Mac Desktop.
3.    Select a topic and a sub-topic in step 1.
4.    Click Get Phone Number in step 2.

I've also added this article to learn more about how to back up file: Back up your QuickBooks Desktop for Mac company file

Keep me posted on how things go once you've tried the steps. Thank you. 

exactly the same problem with me. Verifying didn't solve the issue