The Customer Groups API lets you create and manage customer groups to provide targeted promotions or take other customized actions based on group membership. For example, you can create Weekly, Monthly, and Quarterly customer groups and add customers to them based on their preferences to receive marketing promotions on a weekly, monthly, and quarterly basis. You can then use the information to manage your marketing email schedule.
You can use the Customer Groups API to retrieve and manage customer groups. You can use the Customers API to add customers to and remove customers from groups and search for customers based on group membership.
For more information, see the following guide: