There are various ways to check which purchase orders were created.
In Oracle Sourcing, access the negotiation whose associated purchase orders you wish to see by entering the negotiation number into the Search Negotiations fields. On the Negotiations Summary page, select Award Summary from the Action menu and click Go. On the Award Summary page, click the response number link to view the information on that response including the corresponding purchase order created for that response.
You can check your Notifications for the Purchase Order Creation Notification, which includes the purchase order numbers along with other information.
You can search for the purchase orders in Oracle Purchasing by entering the negotiation data, for example, the negotiation number. This displays all purchase orders for a particular negotiation. You can also search Oracle Purchasing by entering the original requisition information.