How do I update/edit/change a purchase order (PO)?

The PO needs to have information updated (quantity, subtotal, unit price, payment terms, ect.)

Suppliers cannot directly make changes/edits/updates to a PO. Your customer can submit a change order with edits. The change order will have the same PO number but a new version number.

In order to make changes you can create an order confirmation describing the edits that you wish to make or please contact your customer directly to ask them to submit changes.

SAP Business Network for Procurement & Supply Chain > Transaction Documents > Transaction (Purchase Orders, Ship Notices & Goods Receipts)
Transaction Documents > Transaction Document Administration > Transaction Document Administration Orders