Error code 1722 are related to run time errors in QuickBooks and to fix this you can follow the steps below:

• Go into ‘safe mode’ and back up all your files.
• Download an active and effective malware scanner. For example, malwarebytes.
• Follow with onscreen instruction to set up and install. And do a full scan of your computer.

This is one way you can tackle this problem. If you are in need of more assistance then you can contact QuickBooks customer care number to get help from experts.

For more: quickbooks file doctor

QuickBooks is accounting software for small businesses. While working on software, users mostly face errors due to several reasons. To fix error code 1722 quickly, you need to follow the solution. One of the reasons why users get this issue is a run-time error. There are many other reasons of occurring this issue. If you encounter further problems, find a solution or seek technical support immediately.

Method 1: Clean install Quickbooks using QuickBooks Tool Hub 
Method 2: Use a repair tool
Method 3: Restore the system
Method 4: Repair system registry 

To fix QuickBooks Error Code 1722, you can try the following steps:

Restart your computer. This can sometimes fix minor software glitches.

Run the QuickBooks Repair Tool. The QuickBooks Repair Tool can scan your QuickBooks installation for errors and repair them. To run the QuickBooks Repair Tool, open QuickBooks and go to Help > QuickBooks Desktop Help > Tools > Repair QuickBooks.

Update Windows. Make sure that you are using the latest version of Windows. To update Windows, go to Settings > Update & Security > Check for updates.

Reinstall QuickBooks. If you have tried all of the above and you are still getting the error, you can try reinstalling QuickBooks. To reinstall QuickBooks, uninstall QuickBooks and then reinstall it from the QuickBooks installation disk or download the file.

Greetings,
Peter