How do I include more than 1 email address in my customer details?

You're on the right track, cim2.

We can add multiple email addresses on the Customer information page. However, there's a limited number of characters that can be entered in the Email field. You'll have to ensure that the emails won't exceed.

Here's how:

1. Go to the Sales menu and then choose Customers.
2. Choose the name of the customer, then click to open.
3. Select the Customer Details tab, then click Edit.
4. You can enter the email addresses in the Email field.
5. Once done, click on Save.

I suggest visiting our QuickBooks blog from time to time. This way, you'll be able to stay updated with all the product news and improvements.

Additionally, I've added an article that'll help you send invoices by bulk in QuickBooks Online. This helps you save time by doing it by batch instead of one at a time: Email or Print Multiple Invoices and Sales Forms.

I'm only a message away if you need assistance in managing your sales transactions in QuickBooks.