Let me share some insights, EC2024.

The sender's name and email address need to be modified. However, changing the sender's name or email address won't be possible since it is system-generated.

I've added this article for more information about sending invoices in QuickBooks Self-Employed. Create invoices in QuickBooks Self-Employed. You can also find other helpful articles here for guides and tutorials. 

I'd like to know how things went after you tried the steps. We're here if you need more help. Feel free to reach out to us again. Have a good day!