Ensuring your QuickBooks mobile app syncs seamlessly with QuickBooks Online is crucial for managing your finances and customers effectively. Let's find out why it's only showing two customers to get you back on track, choicecrafts.
When accessing the Customers tab, please avoid clicking on these tabs. It could be why your customer list doesn't appear the same in the mobile app. Tapping these tabs will only bring up customers linked to a specific transaction.

On the other hand, if you haven't clicked on any of the tabs in the screenshot and it still only displays two of your customers, let's troubleshoot this together. An accumulation of historical data can lead to unexpected behaviors.
Let's start by opening your account using an incognito window to eliminate the possibility of a webpage issue. Here are the following keyboard shortcuts:
- Google Chrome and Microsoft Edge: Ctrl+ Shift + N
- Mozilla Firefox: Ctrl + Shift + P
- Safari: Command + Option + P

If it's a success, return to your regular browser. Then, clear your cache to start afresh. If the issue remains, consider switching to other supported browsers installed on your system. It can help fix issues caused by settings, extensions, or cached data that might affect the application.
Moreover, you can send your customer a statement that includes comprehensive details of their invoices, payments, and outstanding balances.
Maintaining a comprehensive and organized list of your customers is essential for tracking their transactions over time. If you need additional assistance or have specific questions about this matter, I'm happy to help you in any way I can. All the very best!