Hi AHIR,
I understand your concern about sending invoices to multiple locations. If you want to email invoices to each store, you can add each store's email address in the customer card (retailer) locations, separated by a semicolon (;). When you go to email the invoice and click the "To" button, all the locations with each email address will show up. You can just tick each location and send invoices. I've found this thread that has details about this, and you might also check this Help article: Adding, editing, and deleting contacts.
Feel free to get in touch if you need more help.
Cheers,
Princess
