This counter tracks session setup attempts for this specific group that failed due to insufficient device resources, distinct from authentication-related failures tracked elsewhere. An admin can use this to see whether a particular group is disproportionately affected by capacity limits - for instance, if that group is assigned to a resource pool that is undersized relative to its user count. A steadily climbing count here for one group while overall device capacity looks fine suggests that group's specific pool or license allocation needs to be increased.