My app is no longer syncing properly with my account. 3 times this week when I opened it, all my suppliers were gone. I had to reinstal the app each time to fix it

I appreciate you uninstalling and reinstalling the app to fix the issue, @accounts517.

I want to make sure this repeating issue gets checked, and I'd like to redirect you to the best support group available to get this address right away.

Since you're still getting the same issue even after reinstalling the app, I recommend reaching out to our QuickBooks Support Team. They can further check on this matter and provide in-depth troubleshooting steps on your app to get this resolved. They can also create an investigation ticket if other users are experiencing the same. To reach them, you can follow the steps below:

1. Sign in to your QuickBooks Online account.
2. Click the Help button.
3. In the QuickBooks Assistance chatbox, select Talk to a human and choose I still need a human.
4. Select Contact Us.

You might be interested in changing your invoice templates. This article will help you customise it right from the mobile app: Customise invoices on the QuickBooks Online mobile app.

Should you need any assistance syncing data from your mobile app to your QBO account, I'm available here to help at any time! Have a great day, @accounts517.