I want to make commitments to clients while creating new sales orders. I need a date field in my sales order in which I could transfer the commitment date to manufacturing and inventory. There is an article I found that has the answer to my problem. It's about "configuring lead times"

http://www.odoo.com/documentation/user/9.0/inventory/management/delivery/scheduled_dates.html

At the bottom of the page there is a section titled "At sale order level" that mentions a "Commitment Date" field. I can't find this section in any module or setting.