How can we change a Purchase Order data after Purchase order is confirmed?

Use Purchase order amendment to create amendment to the existing ‘open’ orders. As in the case of order, amendment document is also sent to the supplier and receiving location. The order, if required, can be re-amended for any number of times but the order is always referred with it’s original number in all the transactions.

SCM – Purchase – Purchase Order Amendment
The Purchase order amendment option comprises the following four screens as below:
• Order: View or edit PO amendment records to change bill to site, credit term, delivery terms, tax option, transporter etc.
• Order details: View or edit line item details like quantity, rate, discount, tax chapter etc in this screen.
• Terms: Purchasing terms like packing, freight etc can be amended in this screen.
• Payment Terms: Payment terms like Release advance, release type, advance amount or percentage etc can be amended in this screen.