When you are on the Customer feature page, you will be able to see the Add button towards the bottom of the customer list:
Once you press on the Add button, you will be able redirected to the Add Customer page:
On this page input the desired information:
The company's name (if applicable)
The status of the customer (i.e., Open, Ongoing, At Risk, On Hold, or Lost)
The first and last name of the customer
The mobile, home, and work phone numbers of the customer
The email address of the customer
If the new customer is a prospect
The location and geocode data of the customer's address
Once you are satisfied with the new customer's information, press the Add button to save the new customer. The new customer's data will then be available through both the web application and the device.