We sometimes (though it's becoming more often) have to advance invoice a customer before the vendor bill is posted in the system. Right now, we make a note to watch for the vendor bill to be applied to the correlating PO so we only invoice the customer any differential. There must be a better way to do this.

With my limited knowledge, I was thinking we could create a checkbox on the PO form and created a search to validate those before each invoicing period. Or, possibly create a workflow that once that box is checked, it sends an email to the appropriate person. To do this, I would need the checkbox to be accessible without someone needing to be in EDIT on the PO form because the BU Lead and PO approver would be the one to make the decision for advance invoicing.