Hello there, @ kperry.
 

As my colleague provided above, you can use the customer message field to enter the other information. You’ll have the option to add a note up to 91 characters. This message will be included when you email or print the invoice.

You can follow the steps that my colleague provided above. Also, you may want to check the maximum number of characters that can be entered each field in your company data file: Character limitations for fields in QuickBooks.

You can tag me if you have more questions. I'll respond to you as soon as I can.