To resolve the issue of the QuickBooks Accounting app not opening, follow these detailed steps:

1. Check Your Internet Connection: Ensure your device is connected to a stable internet connection. You can try switching between Wi-Fi and mobile data to see if that helps.

2. Close and Restart the App: Sometimes, simply closing the app and restarting it can fix the issue.

3. Clear App Data:
- Open your device settings.
- Go to Apps or Application Manager.
- Find and select the QuickBooks app.
- Tap on "Storage."
- Choose "Clear Data" and "Clear Cache." This can help refresh the app and remove any corrupted data that may be preventing it from opening - learn more.

4. Update the App: Ensure that you have the latest version of the QuickBooks Accounting app installed. Check the App Store for any available updates and install them.

5. Reinstall the App: If the issue persists, uninstall the app completely and then reinstall it.
- Long press on the QuickBooks app icon until options appear, then select "Uninstall."
- Revisit the App Store, search for QuickBooks, and install it again - learn more.

6. Check for Conflicting Applications: Ensure there are no conflicting applications running that may hinder QuickBooks from opening. Close other applications if necessary.

7. Reach Out to Support: If none of these steps resolve the issue, consider contacting QuickBooks support for further assistance. They may be able to provide additional troubleshooting steps tailored to your situation - learn more.

Implementing these steps should assist in getting your QuickBooks Accounting app up and running. If problems continue, checking for updates or configurations related to your device's operating system might also be beneficial.