Glad to have you here in the Community, screenmedic22.

We can only have a placeholder for the invoice number and firm name at this moment. As a workaround, you might want to construct a template for recurring invoices. You can also alter the number of days to send the invoice in advance and the message.

Here's how:

1.     Click the Gear icon, then select Recurring Transactions.
2.     Select the New button and choose Invoice from the Transaction Type drop-down, then click OK.
3.     Enter the Template Name and the Number of days in advance
4.     Fill out the Interval section and the necessary information.
5.     In the Message on the invoice field, enter the message you want to show on the invoice.
Select the Save template button.

See the instructions in this post if you need to send an invoice to many email addresses.

I'll always be here if you need anything else. Have a great day!