Hi LeElla C!
Welcome to QuickBooks Community. I'm here to help you in re-importing your data to QuickBooks Desktop Point of Sale.
You can create and restore a backup file in QuickBooks Desktop Point of Sale. If you have created one, follow these steps to restore it. This way, you don't need to re-import those thousands of lists.
- Go to the File menu and select Company Operations.
- From the Start Company window, click the Restore from Backup radio button, then Next.
- Select Restore from default backups or Browse to alternate backup file and select a backup file from the list displayed.
- Click Next then Close.
Check this link for your reference: Create or restore backup files in QuickBooks Desktop Point of Sale.
Also, before you import a massive list of data, make sure that your QuickBooks Desktop Point of Sale is updated to prevent issues.
QuickBooks Desktop Point of Sale requires you to use the default templates when using Excel. Make sure that there are no empty fields and no special characters. Review this article on how to properly import them as well as the template you can use: QuickBooks Desktop Point of Sale: Import and Export overview.
Lastly, I added this link if you need to set up customer rewards: Manage Point of Sale Customer Rewards.
Leave a comment below if you need more assistance in setting up your POS file. Take care!
