Why was the customer button in the mobile app removed? It’s a pain on the ass now to look up the customer list. This sucks. They need to put it back as it was.

Greetings, jameser.

I understand the importance of a smoothly functioning customer button in the QuickBooks Online (QBO) App. I'll be glad to assist you today.

The stored cache may cause unusual behavior in the QuickBooks app because it affects the performance. We can reset it to verify if it is causing this odd behavior. There are a few solutions to fix the issue you're facing. One of these is to try some basic troubleshooting steps: 

1. You can log out of the app and ensure it is updated to avoid interruptions.
2. Refresh the app using the Refresh Data option from the Help menu to download updates or apply recent changes.
3. If refreshing the app doesn't work, try uninstalling and reinstalling it to resolve any unexpected behavior. Also, make sure to download any updated security settings.

For detailed information, refer to this article: See your latest data in the QuickBooks Online app.

I'd also recommend checking out these articles for more reference about managing your invoices using the app:

• Customize invoices.
• Record invoice payments. 

If you have any questions or concerns about your customer in the QBO App, feel free to ask. The Community is always here to help. Keep Safe.