Collective Availability Checks 
Use
In the process order information system, you can check the material availability of several orders at the same time. These collective availability checks always carry out an overall availability check for each of the orders.
The orders to be checked can be process and/or planned orders. As with individual checks, the checking rule is determined via the order type (process orders) or the MRP group / plant parameters (planned order).
See also:
Availability Checks