How do I reverse the damage done by syncing with Square?

Thanks for reaching out, @espresso-58phill.

QuickBooks Online supports various third-party apps for any functionality you may need. You can try searching for an app that can help with deleting or reversing transactions.

You can follow these steps:

1. On the left panel, click Apps.
2. Go to the Find Apps tab.
3. Use the search bar to look for an app.
   

Refer to these articles for more info: 

• Install and use apps.
• Apps that work with QuickBooks

Stay in touch if you have any other questions or concerns. I’ll be right here to answer them for you. Enjoy the rest of the day.