Hey, @Tiger5 .
Thank you for joining the thread.
I understand that you’d like to be able to set up secondary email recipients and most mailing clients do offer a way to forward emails to another account. However, if you prefer doing this directly on Shopify, then you can explore a third-party app called Softify: Easy Invoice+. If you need to get help with a third-party app, then the app developer is always available to assist you. Simply reach out to them using the contact information found at the bottom of their app’s page.