Approval - Group and Approval - User are both workflow activities that generate approval requests, but in different ways:
The Approval - User activity will create one or more approval requests for individual users. You can add both users and groups as approvers in this activity, but when adding a group, this activity will actually generate a separate approval request for each user in that group:
If you were to check the Advanced box, you could even use a script to generate additional users for approval, by setting a ...
