3.2.1 Reverse invoicing
The process of reverse invoicing is based on the Airline advising the Caterer what the cost of the invoice should be, and then the Caterer using the Airlines proposed invoice as the basis for payment. The Caterer will manually compare their own version of the costs against their invoicing system and where necessary make adjustments to the Airlines version of the invoice, it is necessary for the caterer to prevent their own invoice being passed to the airline, and accept that the invoice in service validation is the master invoice between the two companies: