I can guide you create a draft invoice for approval, Nicole.Lim.

You can create an estimate for this one. Here's how:

1. Click Plus icon (+) at the top.
2. Under Customers, select Estimate.
3. Add the Customer's name. 
4. Verify the Estimate Date, then enter the Expiration Date (optional).
5. Enter the Service Date, Product/Service, Description, Qty, Rate, Amount & Customer message.
6. Once done, click Save.

For more details about estimates, you can check out this article: https://community.intuit.com/articles/1145302.

Once the estimate will be approved, you can convert it into an invoice. You can follow the detailed steps in this article: Convert an estimate into an invoice in QuickBooks Online.

Feel free to leave a comment below if you have more questions. I'd be glad to answer them. Thanks!