Question no 1299 : Create Purchasing Document with Reference

In SAP MM Purchasing, which of the following Purchasing Document creation with reference is not valid ?

(more then one answers)

A)     Create Purchase Order with reference to Quotation.
B)      Create Purchase Order with reference to Scheduling Agreement.
C)      Create Contract with reference to Scheduling Agreement.
D)      Create Scheduling Agreement with reference to Central Contract.
E)      Create Scheduling Agreement with reference to Plant specific Contract.
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