How can I get rid of an invoice on my app that was previously deleted on my computer online. It continues to show up only on my app

Hi kellycorazza44.

Having information shared between the app and the web based version is one of the ways QuickBooks Online helps you access your company information where ever you are. I'd be happy to help you get that invoice deleted in the app.

If the app is showing information that was already deleted on the web version it could be due to the app data cache. In order to fix this you'll need to clear the cache by following these steps:

1. Log in to your account.
2. Go to the Help menu at the top of the screen.
3. Choose the Rest App Data option on the drop-down selection.

If you get the same result, uninstall and reinstall the QuickBooks Online app. This is to ensure you get the most recent version of the application. 

If neither of these fix the issue I recommend contacting our support team by using one of the following methods:

Schedule a Callback or start a Chat: click (?)Help in the upper right in QuickBooks Online > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat.
Social Media: Facebook, Twitter, and Instagram.
Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET.

Have a great day.