Use this tab to define agreement invoice rules that will be applicable to the services included in the service contract. The rule can be applied to either sales groups or cost types. For each agreement invoice rule and connected sales group or cost type, you can specify if corresponding sales lines with a zero invoice amount should be included in or excluded from the customer invoice. Also, use this to define how much of the sales price you wish to include to invoicing or to define how much of the cost you wish to add up to the cost itself to calculate sales price.