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 for the client so he can pay you. That's why we developed an invoicing system that will allow you to generate and send invoices to clients on your list. We did that so you can keep everything in one place. You will find the invoicing module here:
"A quick invoicing"
"Keep it organized"
"Send PDFs automatically"
"Tag if paid"