Advanced Tab Page

Printed:  The Printed Flag is used to indicate whether the selected purchase order line has been printed and forwarded to the vendor. 

Price Source:

Vendor SO:  An optional field that can be used to identify the vendor sales order that is associated with the selected PO line.

Vendor SO Line:  An optional field which can be used to identify the vendor sales order line number that is associated with the selected PO line.

More:

Vendor/Item Comment Tab Page