If you are selling products for an external customer, you have the option to create the customer as an external user, so that your customer can see the sales that are made.
1. To create an external user who can view the sales summary, go to "Users" in the main menu and then "Create" in top corner.
2. Select "Create Sales Access" on button in the right corner:
3. Then enter information on your external user and select "Save User".
4. Now the external user can log in and see your sales.