Copying users or contacts in Purchase Orders

Hello Dolibarrians!

I am getting ready to send purchase orders via Dolibarr. I would like to send the PO to my vendor, but copy another employee at my company. I have set my fellow employee up as both a user and a contact, but when i am getting ready to send the email via Dolibarr, she does not show up when i start typing her name.

Is there something I am overlooking to allow me to CC her on the PO?

I appreciate your guidance!