This tab is practically the same as the Main tab in the Register Purchase Order procedure. However, some fields are specific for the blanket order; Valid from and Valid thru under Blanket order. This is where you enter the blanket order's validity period.
Blanket Order Status
A blanket order always has a particular status, depending at what stage the order is in the system. Once a blanket order has been registered it is given Status 1. When it has been printed, it is given Status 2. When a blanket order is considered to be finished, it will automatically be given status 9 - Historical.