To search for a purchase order you can either search by:

1. You can type in the purchase order reference or the job reference in the filter box
2. The vendor using the "Vendor" drop down menu
3. You can search using the order date
4. The status of the purchase order using the "Status" drop down menu

 

You can order by any columns by clicking on the header name. 

When you open a purchase order you can open the linked job by select the job ref is one has been added.