Price List: indicates the price of all products and services related to an agreement and controls the price list that is replenished in the work orders and invoices of this agreement. Add all products and services used during the agreement to the agreement`s price list. Agreements usually include a negotiated price for goods and services, which is usually reflected in an entirely new price list. The price list of work orders and resulting invoices can be updated manually if necessary. You can always insert all this into an agreement. But it could be messy. Any agreement may have one or more billing establishments. I think you can imagine that they operate in a very similar way to that of a booking establishment. But instead of generating a mission, they generate invoices.