I recognize that rounding the invoice rate to three decimals places would be a great functionality, Tonya T. I'm here to share some insights.

Since the option is unavailable, I'd recommend sending a feature request directly to our Product Development team. This helps us improve your experience and the feature of the program. 

Here's how:

1. Go to the Gear menu and then select Feedback.
2. Type in your feature request in the description box.
3. Once done, click on Next.

Also, you can track feature requests through the Customer Feedback for QuickBooks Online website.

Additionally, I've included these articles that'll help you in managing your sales transactions. This way, you're able to keep your book accurate:

• Sales and Customers
• Invoices and Payments

I'm only a post away if you need more help in completing your other tasks in QuickBooks, Tonya T. It's always my pleasure to help you out again.