In OIS Central select the “Customer” tab as shown below: When you go to this section in the OIS Central you will see the following shortcuts or buttons. Customer, Orders, Invoices, Credits and Payments.
Click on the plus sign icon next to the label “Customers”. You will see a form to fill out with all the information related to the new customer.
Fill out the form with the fields required: Company Name, Company Address, Phone, city State and Zip code.
After you finish filling-in the information in the form and you wish to save the customer information, click on the “Save” button as shown in the graphic.