In the event that there is an error in the purchase order #, you can easily make revisions or remove the PO number entirely.
Modifying the PO Number
Navigate to the appropriate Event detail screen as an Admin (only admins may make adjustments to a PO# after it has been submitted).
Click on the pencil icon next to the purchase order section
Make your revisions in the pop up screen
Click Submit
The PO will be updated and the Event status will not be changed
Removing the PO Number
Navigate to the appropriate Event detail screen as an Admin
Click on the trash icon next to the purchase order section
Click “yes” when prompted with the warning message
The PO numbers will now be removed and the Event will be returned to a “Pending PO Status”