If you’re using more than one cloud service for contacts on your iPhone, iPad, or iPod touch—such as accounts for work and personal contacts—then you probably want to make sure that you’re creating any new contacts in the proper address book.
In your Settings app, under Mail, Contacts, Calendars an option should appear in the “Contacts” section whenever you have more than one account configured for contact sync, allowing you to choose the default account where any new contacts you create should be placed.
This will work for any contacts that you create from other iOS applications as well as contacts created in the Contacts app when more than one address book is selected.
