Invoice to Accounts Payable email without contact

Invoice to Accounts Payable email without contact

Dear Zoho team and users.

I am facing a problem related to the way we send invoices.
For example, we need a way to remember to whom we should send invoices. I know that Zoho has the "Primary Contact", but sometimes the company i am invoicing only has an "AP@" email without a real person assigned to it. Zoho Books doesn't allow me to assign the primary contact to a email only, it needs a last name and it will add into the CRM side, so in the future, it will be a mess.

Is there a way to remember/show the primary contact in books without a contact first/last name or is it a real issue?

Best,