When sending invoices to your clients, you might want to add a text to this invoice that tells them what to do with the payment or any other important information. You can customize this text in your business settings under financial info. Please note that this text will be shown on every invoice, and you can not create individual texts for each invoice. If there is an invoice that you need to send out with a specific or personal message, you can either put that message in the email or change the standard text for a few minutes. Don't forget to change it back after!