The app is not working for quick books

I'll help you perform some mobile troubleshooting steps so you can resume using your QuickBooks app, wngf327.

To begin with, did you encounter any errors while working with your QuickBooks app? If so, sharing the specific error message would greatly assist us in identifying the issue and providing a tailored solution.

Meanwhile, we can clear your app data on your mobile device to reset the app to its default state. The stored cache can cause unusual behavior in the QuickBooks app. 

For iOS users:

1. Open your Settings, then tap General.
2. Tap iPhone Storage. Choose the QuickBooks Online app.
3. Click Offload App.
4. This action will clear storage space while keeping your app's documents and data intact.

For Android users:

1. Proceed to the Home menu or tap the three dots in the right upper right corner.
2. Tap on Settings, then select Refresh Data.
3. Press Yes.

If the issue remains, I recommend uninstalling and reinstalling the mobile app to ensure you get the latest version of the QuickBooks app.

Moreover, you can access your QBO account using any supported mobile web browser. This can serve as an alternative approach to accessing the QBO app.

I've included this reference to help you record customer-paid invoices to ensure accurate recording into your file: Receive an invoice payment using the QuickBooks Online mobile app.

If you have further questions or concerns about accessing your QuickBooks app, please return to this post. I'll be available to offer support. Stay well.