Steps:
Open the PO.
Select Cancel PO. When Cancel PO is selected, the line item will be added to the Purchasing List.
Repeat these steps for the alternate PO.
Select the Procurement page. Select the line items from the Pending Order item list and select Create Purchase Order.
If you have PO email automation enabled on your domain, please ensure your vendors are contacted as appropriate as the purchase orders are sent to your vendors when your POs are automatically created.