Nick here from Shopify. I spotted you asked this at a different time and I got a response to you on it. Just in case you missed it by any chance, I'll mention it again to you here. ?
The best option for this comes from a source outside of Shopify called Ali Invoice, there is also a chrome extension for this which you can see here.
Don't hesitate to ask should you ever have any questions about anything!
Nick | Community Moderator @ Shopify - Was my reply helpful? Click Like to let me know! - Was your question answered? Mark it as an Accepted Solution - To learn more visit the Shopify Help Center or the Shopify Blog