To provide a copy of a customer's invoice via Fax:
Access the customer's invoice.
Click the Fax icon in the upper right of the invoice.

This displays the Fax Invoice window.

Enter the customer's Fax number. (or is it auto populated)??
If applicable, check the Override Charge check box so that the customer will not be charged.
Note
If the Charge and Override check boxes are grayed, you do not have permission to make changes.
Click Send to continue.
This sends a message to OSG, and from there the fax of the invoice copy is sent to the designated customer.
Fax Error Message (and how to respond to an error message)

A fax request error requires the rep to either reverse the Order or add an Adjustment crediting the amount of the fax charge.