During the process of Order creation, the Airline Accounting System only needs to be informed when a financial liability has been incurred. This happens when payment has been taken, and the Airline is liable for delivering a Service for which it has received funds. To inform the Airline Accounting System, the Airline OMS uses the Order Sales Notification Message (“OSIN”) message.
In cases where payment is not immediate, there is an Order created but no interaction between the OMS and the Airline’s Accounting System. The interaction to the Accounting System only takes place when the payment is taken, since prior to this point there has been no financial commitment.
Initial Order Notification to Accounting: