Group licensing is usually going to be a precise operation meaning that it will be a specific person in the group who will need a license assigned to them for a specific reason. It is possible to have many different types of licenses owned by a group. For instance there may have been a purchase for say five, non-recurring, mobile licenses, and simultaneously there also exists say two, recurring, non-mobile licenses. In the case where there is multiple types available to choose from, it's important that the group owner assign the appropriate license to the appropriate person so that they may carry out their job. Group license assignment happens on the [MyProfile->Group->Members] page.