QB for Mac 2019 - Signed Out and Lost 1 Month of Data

Hi there, Katrina14.

Thanks for dropping by the Community. I'm happy to provide you some insight into how to avoid losing data in the future. My best recommendation to you would be to schedule automatic backups that back up your company file every 24 hours. That way, you can never lose more than a days worth of work at the worst. To do so, follow these steps:

1. Select QuickBooks, then select Preferences.
2. Select Backup.
3. Select your backup preferences.
   1. Automatically back up company files every x hours: Choose how often QuickBooks backs up your company file in a 24 hour period.
   2. Automatically back up company files when closing: Choose if you’d like to back up your files when you close QuickBooks.
   3. Save backup files in: Choose where you’d like QuickBooks to back up your files. We recommend you use a different drive or machine, so if there’s ever a problem you’ll still be able to access your backup.
   4. Overwrite last backup: Choose if you want QuickBooks to overwrite your last backup file. This means, you'll only have your most recent backup stored.
   5. Encrypt files with password: If you want your backups to require a password, select Change and enter a password.
   6. Back up attached documents library: Choose if you want to back up attachments you’ve added to QuickBooks records and transactions.
4. When you’re done, close the Backup preferences window.

You can find these steps and additional information on how to manually back-up your company file at the following link. If you're still running into issues, I would also recommend reaching out to our support team, they are well versed in ways to troubleshoot these kind of issues and will be able to help you figure out what cause the original issue. To reach them, check out the steps, here. 

Thank you for your time and if you need anything else, don't hesitate to post down below. Thank you and have a nice afternoon. 

I figured it out! I was super upset thinking I had lost a month's of accounting too. Go to your Hard Drive > Users > (Your user name) > Library > Application Support > com.Intuit.QuickBooks2019 and choose the folder ending in Cache that is closest in date to your file when it was last working - then open that folder and you should see your QB file in there. For some reason, I had to upgrade from 2016 to 2019 when I tried to open it, but once it was upgraded and opened, all my transactions had been restored and it was up to date!