First, select the Request Status category in your Navigation Panel:
You can now view all of your Purchase Requests and sort them by status with the Draft/Pending/Approved/Attention tabs:
If you need additional information about an order after its been approved then open the Purchase Request and locate the Purchase Order number in the document header.
Once you know the Purchase Order you may contact the vendor and provide them with the Purchase Order number to check order status.
Check out the Status guide for more information on what each status means.