An order is the linking of one advertiser with an agency and an invoice recipient for one calendar year. The order is the frame for the business cases and campaigns for this specific advertiser. The business cases in a linear context like TV or Radio will be handled by suborders.

1. The order number is generated automatically with the current year and a counter that keeps the order number unique
2. Advertiser
3. Agency (can be a media agency or the advertiser himself)
4. Invoice recipient (is the client which will get the invoice. this can be the advertiser himself if he has the client type "invoice recipient"
5. Validitiy of the Order (usually one year)

Once the order is generated the business cases like payed or free can be divined by creating suborders which is handled in the next chapter.