Unable to create invoices for my customers. Receiving the same message over and over. Call succeed but payload is empty. I have tried reloading the app, still no success

Hello, @nervousticks1. Let's address the error message "Try again call succeed and payload empty" that you're encountering while creating an invoice.

Could you please tell me what device you're using when you experience this issue? If it's an iOS device, we can refresh your data by offloading your iPhone system. 

Here's how:
 

1. Go to Settings, then tap General.
2. Tap iPhone Storage, then tap the QuickBooks Online app.
3. Tap Offload App.
    

If the issue persists, consider using an Android device to create your invoice. Make sure to download the latest QBO application or log in via a web browser. If the error occurs on an Android device, you can refresh your data to free up storage. Ensure your app is updated. 

Here's how:
 

1. Click the Menu tab and select the More Options.
2. Select Settings, then Refresh Data.
3. Click YES to confirm.

For issues on mobile or computer browser, try logging in using incognito mode or a private window, which avoids cache files that might cause unusual behavior. Use these shortcuts to sign in via a computer browser:
 

• Google Chrome: press Ctrl + Shift + N
• Mozilla Firefox: press Ctrl + Shift + P
• Microsoft Edge: press Ctrl + Shift + N
• Safari: press Command + Shift + N

Once there, create an invoice. If this method works, clear your regular browser's cache to eliminate accumulated data. If the issue persists, you can use another supported browser or device.

 You can visit this article to learn how to personalize your sales forms, helping you create professional-looking invoices, estimates, and sales receipts in QBO: Customize invoices, estimates, and sales receipts in QuickBooks Online. 

If you ever need more help with your invoice transactions, just click the Reply button below. I'm here to help you and ready to assist. Have a good one.