Thanks for getting back in the thread, @MCsandhills.

Allow me to step in and help share additional information about creating an invoice for non-inventory items.

Since these items are not tracked as inventory part, QuickBooks will neither track the quantity on hand nor its value. You'll need to ensure the items were received first since we don't have the option to warn if the items exceed quantity on hand/quantity available when creating an invoice. 

For frequently asked questions about items in QuickBooks, You may find this article helpful: Items in QuickBooks Desktop.

Should you have other questions about your inventory items, please don't hesitate to let me know. I'm here to help.