Please note that the business name displayed on the invoice depends on how you configure your business/firm name via Gear wheel > Profile
Illustration: The agent wants to update the Invoice "Firm Name".
Invoice original "Firm name" set as "Edwards & Co Pty Ltd"

After changing the firm name through Gear wheel > Profile, the invoice was updated to 'Hope and Future Associates.'. Please note that this change will also apply to previous invoices.