Thank you for reaching the Community, hpia-bethal-mweb.
Let me guide you in adding another email address to a customer in QuickBooks Online.
You can enter another email address in the customer profile. You just need to add a comma to separate the main and the second email addresses.
Here's how:
- Go to your Customers list.
- Find and select your customer.
- Click the Edit button.
- In the Email box, enter the second email address (separated by a comma).
- Click Save.
I'm adding these articles that you may use as future reference:
Feel free to post your other concerns or any follow-up questions. I'm always here to help. Take care and have a great day!