To approve a PO you have to enter in edit mode by either navigating with the process bar or by clicking edit on the PO listings. Once inside the PO you will find the list of products or services. You are offered different options per product or service line.
a) You can add a new price – Enter the new price that will replace the catalog price
b) You can reject the line – Rejecting will return this line for the user to edit or modify
c) You can approve it – Approving will confirm that line information is correct and that you will create a PO for your supplier.
For PO requisitions module ONLY you have also the option to edit the lines and change all the information coming from requisition module without rejecting or editing on requisition module. You can as well add more product directly from the current PO requisition module.