Under Order number you can see the order number of each respective order for this part. If it is a material requirement, you will see the manufacturing order for the main part that incorporates this part. If it is a suggestion, you will see the suggestion number. For simulations created in the Check Delivery Times (CDT) procedure you will see the CDT number.
You can select a row in this column, to either replan orders or view additional information by right-clicking and opening the Info menu.