At this time, Sovos app is not listed in the QuickBooks App Store, @YT26. You'll need to reach out to Sovos support team to determine if it can be integrated to QuickBooks. Let me share more information. 

You can visit their website to access support information and communicate with them directly. They can also offer more details about the app, including usage timelines and additional support resources.

Additionally, please know that any questions about the integrated app in your QuickBooks account should be directed to the app's third-party provider.

Furthermore, you can visit this article for future reference about managing invoices and payments in QuickBooks:

Feel free to respond if you have clarifications with app integrations and other QuickBooks-related concerns. I'm always here to help.