Hello there, mccannlindylee.

When you encounter an error while importing invoices in QuickBooks Online (QBO), an error message will appear along with suggested steps to resolve it. Begin by following the solution provided. If the issue persists, it may be caused by excessive browser data affecting system performance.

Performing browser troubleshooting can help resolve this. Start by testing the process using incognito mode:

• Google Chrome: Ctrl + Shift + N
• Safari 11 or newer: Command + Shift + N
• Mozilla Firefox: Shift + Ctrl + P
• Microsoft Edge: Ctrl + Shift + N

If you can successfully import your invoices while using private window, this indicates there is an issue with your regular browser. To fix this, proceed with troubleshooting your browser to ensure the program runs smoothly and to resolve any technical errors. You can also use different supported browsers as alternatives.

For more questions, please don't hesitate to leave a reply below.