Just in case you want to review the template in your invoices, you can check the send forms preferences. Make sure that you're in a single-user mode (click the File menu and then select Single-User Mode) and follow these steps:
Click Edit at the top menu bar and choose Preferences.
Select Send Forms.
Go to the Company Preferences to choose the invoice template and then click Edit.
I've got you covered anytime. So if you have other questions about customizing or including some details in your invoice, you can place a comment below. Stay safe and healthy!