Once a purchase request is approved, what is the next step?

Question $42$ options:

$1)$

The system creates a purchase order

$2)$

The accounts payable department approves the purchase request, creating a purchase order

$3)$

The product inventory master file is accessed to find the preferred supplier$($s$)$

$4)$

The department that created the purchase request may buy the requested item$($s$)$