Reflects that a “cancel” operation can’t be done for some reason
Reflects that a deployment of a service (at cache, or assigned to user) can’t be done for causes we don’t know in advance
Invalid service specified. The service is not ready
Number of maximum services has been reached, and no more services can be created for users.
Reflects that the operation requested can’t be acomplished, i.e. remove an snapshot without snapshot reference, cancel non running operation, etc...