I want to make sure you're able to use the application and send the attachment in QuickBooks Online (QBO).
Let's get your mobile app up and running by resetting the QuickBooks Application. This is the same as clearing the cache from your web browser. Let me guide you on how.
For Android device:
From More Options, then select the Settings tab.
Choose the Refresh Data menu.
Go to the Help menu.
Select Reset App Data.
If the same problem, let's uninstall and reinstall the app for a clean slate. You need not worry since it won't delete any of your app's transactions. For uninstalling the QBO app using the iOs device, you can touch and hold the app, then click the Delete app button.
Tap Settings on your phone.
Select Apps and Notifications, then locate the QBO app.
If it works, return to your default browser and clear its cache and cookies. By doing this can solve performance issues when you visit a website, particularly if the cookie is flawed. However, if the same concern, I'd recommend using other supported browsers.
If the issue persists after following the troubleshooting steps above, I'd suggest communicating with our Customer Care Team. This way, they can access your account in a safe atmosphere and investigate the root cause of the problem.
Go to the Help menu, then choose Contact Us.
Enter your concern in the box, then hit Let's talk.
Choose either Start a chat or Get a call.
4. Complete the needed information, then submit the request.