Dears as applied by the Zakat in the Kingdom, by inserting the QR code on the invoiceBecause now we are trying to link the art system with the QuickBooks system

We understand that each business has unique needs, e-ewis.  

The option to add a QR code to the invoice is not possible in QuickBooks. I can certainly understand how the ability to include a QR code into the invoice could be useful.

I recommend sending this feature request. Your feedback's definitely valuable to Intuit. It will be reviewed by our Product Development team and considered in future updates. We take this as an opportunity for us to improve how the program works. You can stay up-to-date with the latest news about your product by reviewing Intuit's Product Updates webpage.  

As a possible second workaround, you can check our QuickBooks App Store for apps that may be able to help you achieve what you're looking to do. 

I appreciate your patience as we work through this. If there's anything else I can do for you, please let me know. I'll be around to help you out. Stay safe!