Question no 1291 : Framework Purchase Order

In SAP MM Purchasing, which of the following ensures the entry of the Validity Field is mandatory in the Framework order or Blanket Purchase Order Scenario ?

(only one answer)

A)     Vendor master account group.
B)     Item category.
C)     Account Assignment.
D)     Material type of the Material Master used in the Purchase Order.
E)     Purchasing Document Type.
.