What Are We Trying to Accomplish?
Re-Open allows you to re-open a previously cancelled PO line that currently has a Cancelled status.
How Do I Do It?
1) Find the PO line marked Cancelled
2) Click the checkbox next to the PO line that needs to be reopened
3) From the action menu select "Reopen"
4) Once you re-open a PO line, the line will go back to the status it was in before it was cancelled.