What are PO Revisions

You can set up Lawson to track revisions to PO's based upon the PO being released or waiting until it is Issued before tracking this (this is my recommendation). PO Revisions are tracked to indicate that you've made a change to a PO that has been sent to a vendor. You can reissue the PO to the vendor only sending the changes or you can reissue the entire PO (with the changes highlighted in the file). You want to track PO Revisions so you can know that a change was made after the PO was issued so when the vendor ships different items or quantities then you'll know why.

Does that help?

Po Revisions also include changes made to to a PO line type ie from "N" for non-stock to "I" for inventory or "X" to special order.

It may also include revisions to the uom on a line on a purchase order.

If you drill on a PO number you can see revisions or PO audit and that may give you the revisions made to a PO.