Restore customer list

Try opening your QBO account on any private/incognito browser.

I know how important it is to have a complete customer list when creating transactions. Allow me to quickly answer your concern about missing data in QuickBooks Online, beavjohnson.

Can you also confirm if you're using the QBO mobile app on iOS? I reviewed our records and noticed we had an open investigation about this issue a few days ago. Our engineering team was able to deploy a fix to resolve the missing customers in the mobile app. 

I'd recommend updating the app to apply the fix to your device. Aside from that, you can also temporarily uninstall and reinstall the app if the issue remains after updating it.

Let me share these steps with you:

1. Tap and hold the QBO mobile app on your phone.
2. Drag the app to the Uninstall section.
3. Click Yes to confirm.

Then, go to this link to redownload the app: iOS.

If you're using the web version, too much cache, and other technical issues in your browser can cause missing data in QBO.

You can follow these steps on how to resolve common browser issues when working in QuickBooks:

1. Use a private/incognito browsing session or restart your browser.
2. Clear your browser's cache.
3. Add Intuit as a trusted site.

Just in case you need additional guidance while working with your customers in QBO, you can save or bookmark these articles:

• Change Sub-customers Into Projects QuickBooks Online
• How To Assign Account Numbers To Customers In QuickBooks Online

Should you encounter any further questions or issues related to managing customer transactions in the app or web version of QBO, please feel free to seek help from the Community. We're always available and ready to assist whenever needed.

All customers are there, as they are on my normal Chrome browser. The are missing on my iphone

Let's fix your concern about using the QuickBooks Mobile app, bea. With this, we can conveniently start managing your customer lists seamlessly. 

It's important to keep your application updated to get the latest features and fixes. Correspondingly, clearing the app data can help solve common problems and improve the app's performance. Make sure you're connected to the internet and follow these steps:

For iOS:

1. Go to Settings.
2. Select Setting General iPhone Storage.
3. Choose the Offload App button.

If the issue persists, let's proceed to uninstall and reinstall your account to have a fresh start. I also have this article to guide you in reinstalling the application: How to download the QuickBooks Online mobile app.

If the same thing happens, I recommend contacting our Technical Support Team to initiate a further investigation about missing customers using mobile phones.

Furthermore, I have added an article that can offer you an overview of the app's capabilities. This will help you explore the software effortlessly: QuickBooks Online app overview. 

If you require any help, feel free to leave a comment in this thread. You can rely on me to offer you with dependable and beneficial assistance. Take care!