The Serv. Inv. Line Price Adjmt. table contains information on the groups of service invoice lines that price adjustment groups adjust. You can, for example, have a price adjustment group that adjusts invoice lines including any spare parts, one that adjusts invoice lines for a particular resource, or one that adjusts invoice lines for all spare parts with a particular combination of general business and product posting groups.
The item, resource or cost to which you post the difference produced by the adjustment lines for the service price adjustment group, must have the same VAT product posting group as the adjusted service invoice lines.