Hello @fghjui98765,

Welcome to the Community. I can provide some clarification about the information posted above.

My colleague is referring to the details showing when you print or email an invoice. Currently, the option to completely hide the details from the middle section of the template is unavailable.

As a workaround, you can download the invoice as a PDF, then find a third-party application that will help you edit the file. Some apps help remove other info that you don't need to send to customers.

You can find the Download option from the Print preview section (see screenshot below).

Though, it would be beneficial to send an invoice with a total only in QBO. Our engineers might be working to bring this ability over to this platform in the future. As we assess this, you can check our QuickBooks Blog for product updates.

For additional reference, I've attached a link you can use to personalise sales forms in QuickBooks: Customise invoices, quotes, and sales receipts in QuickBooks Online.

Drop me a comment below if you have any other questions related to invoices. I'll be happy to help you some more.