There are multiple ways to send out invoices both physically and electronically.
For details on sharing invoices click here:
To notate that a contact should be able to receive a copy of an invoice, either in addition to the Primary Client, or instead of the Primary Client, they must be marked as a Billing Contact.
- Navigate to the Matters section and open a Matters details, then click + on the action bar to display the Add Matter Contact modal.
- Slide the Billing Contact toggle to the right to activate it.