You are entering a supplier invoice for a PO that has been delivered what Information can you use a reference to post the invoice? Note: There are 3 correct answers to this question

You are entering a supplier invoice for a PO that has been delivered what Information can you use a reference to post the invoice? Note: There are 3 correct answers to this question
A . PR number
B . delivery note number
C . BILL OF LADING NUMBER
D . PO number
E . Material document number

Answer: B,C,D