Here is a unit we have set up in Dealership Software. So far no internal invoices have been created for it.
1. Create a new customer invoice for the “Internal Customer” with the unit as the vehicle.
2. Create the invoice for the work done on the vehicle.
Note: There is no tax on this invoice at this point because this work is being done internally
3. Process the invoice and press cancel when it asks for a payment (you don’t need to create a payment as it’s a $0 invoice).
4. The unit cost will now include the price of that invoice.