The unique ID for the customer’s Google Workspace account. As an account administrator, you can also use the my_customer alias to represent your account’s customer ID. The customer ID can be obtained by the List Users action.
Group Key
A unique identifier of the group to remove a user from. The value can be the group’s email address, group alias, or the unique group ID.
Member Key
A unique identifier of the member to remove from the group. A group member can be a user or another group. The value can be the member’s (group or user) email address, alias, or the unique ID.