On the home screen tap "customer".

Then tap "add new customer".

In the top right hand corner there is a phone book icon.

Tap on it.

You may need to accept the permissions for the app to access your phone book. If so just tap "allow"

Once access is granted please find and tap on the customer you would like to add to the software.

This will add the customer Name, Phone number, Address and Email address to the software.

Fill in any further information you wish to add and click save.

Congratulations! you have now added a customer from your phone book.