When I press the tab to convert a estimate to an invoice it just goes back to the estimate?

Hello, gibb1019. Let's check if this is due to your browser issue with the estimate not converting to an invoice in QuickBooks Online.
 

A browser issue may be causing your estimate to not convert to an invoice in QuickBooks Online. The browser's cache and cookies can sometimes cause conflicts with the application, resulting in unexpected behavior. To rule this out, let's use an incognito or a private window: 

• Ctrl + Shift + N  for Google Chrome
• Ctrl + Shift + P  for Firefox
• Control + Option +P for Safari

If the process is successful, I advise clearing your browser's cache and cookies. This could help resolve any issues related to outdated or corrupted data stored in your browser. If clearing your cache and cookies doesn't work, you could try using a different browser altogether. Popular options include Chrome, Firefox, and Safari. Other browsers use various rendering engines and may handle websites or applications differently, so switching to a different browser could help you identify and resolve the issue. 

Alternatively, you could update your current browser to the latest version. This could also fix any bugs or issues that you're experiencing. Browser updates often include security fixes and performance improvements and may help resolve compatibility issues with newer versions of websites or applications. 

 By taking these steps, you can ensure that you're using the most up-to-date and optimized version of your browser, which can help you have a smoother browsing experience and avoid any issues.
 

To learn more about converting an estimate into an invoice in QuickBooks Online, you can check out this article: Convert an estimate into an invoice in QuickBooks Online.

Should you have further inquiries about converting transactions to QuickBooks, kindly click the Reply button below or submit your concerns in the Community section. May you have a pleasant day ahead, and take care!