Using an Auxiliary Business Name for Invoicing
If you want to issue invoices under different business names, you can use an auxiliary business name.
Enabling an Auxiliary Business Name
Go to My Info → Auxiliary Business Names
Enter the new auxiliary business name and its related details
Invoicing with an Auxiliary Business Name
Go to Sales → Invoices
Select New Invoice
In the Sender field, choose the auxiliary name from the dropdown menu
Enter the invoice details as usual and send it