Hello, @jevansstaffcom.
Let's first review your sending forms preferences to ensure that a default email address of your CC person is set up properly. Once completed, let's try creating a dummy invoice and send it to a dummy CC email address.
- Go to the Gear icon.
- Select Account and Settings.
- From the left menu, click Sales.
- Go to the Messages section, enter the email address under Copy (Cc) new invoices to address and Blind Copy (Bcc) new invoices to address.
- Once done, pick Save.
- Hit Done.
You can read through this article to learn more about emailing invoices and other sales forms:
Always feel free to leave a comment below if there's anything else you need. Wishing you all the best!