Shared contacts are the contacts (leads, customers, etc.) that need to be viewed and accessed by members of your team. Share Email Contacts offers a convenient and efficient way to manage those contacts across your G Suite Team. Our application uses Google Contacts application programming interfaces. So when you use the application for the first time, G Suite Admin needs to install the domain-wide and provide required permissions to access their Google Contacts on behalf of the company. You only need to do this once. Any company user will be allowed to login and use the application after that.