private EMailRM CreateEMailForAssociate(Commands.V1.Associate.EMail.CreateForAssociate cmd)
        {
            EMail email = EMail.CreateForAssociate(_emails++, EMailAddress.Create(cmd.EMailAddress), cmd.IsPrimary, cmd.AssociateId);

            if (_repository.EMailExistsForAssociate(email, cmd.AssociateId))
            {
                throw new InvalidOperationException($"EMail already exists for Associate {cmd.AssociateId}");
            }

            _repository.AddEMailForAssociate(email, cmd.AssociateId);

            return(Conversions.GetEMailRM(email));
        }