When you deal with clients, your main goal is to generate profit. If you want to do that in a legal way you need to create a payment document...
This is just a little of the lesson. Take the course to see the rest
"start from the beginning"
"learn the basics"
"it's important to keep control over the document number"
"this will help you to define who owns your money"
"we're adding an invoice PDF file to a files repository ones it's generated"
"recurring option"
Auto sending invoice to clients
" you can do that directly when you're adding invoice"