You can now assign an invoice to a different customer to the one that ordered from you without losing track of the original client. This is useful where your clients use finance to pay for their orders or are tenants of property management companies.
To show these fields:
Select the Cog -> Invoice Settings -> Show/Hide Edit Fields and make sure the Non-Billable Client and Non-Billable Contact are set to ‘Show’.
You can add these to your invoices using the following tags: