The Workflow Approval feature includes two types of approval chains: Group Approval and Manager Approval.
In the Group Approval chain, actions are approved by members performing a specific function in the customer's organization. In the Manager Approval chain, actions are approved at successive levels in the customer's organization.
When you configure each approval chain, you select the services you want to enable for approval and the actions that will generate approval notifications. For group approvals, you also select the group members who can approve these actions. For manager approvals, you define the manager levels required for approval.