code: def handle_transmission_error(self, learner_data, request_exception):
          
          try:
              sys_msg = request_exception.response.content
          except AttributeError:
              pass
          else:
              if 'user account is inactive' in sys_msg:
                  ecu = EnterpriseCustomerUser.objects.get(
                      enterprise_enrollments__id=learner_data.enterprise_course_enrollment_id)
                  ecu.active = False
                  ecu.save()
                  LOGGER.warning(
                      'User %s with ID %s and email %s is a former employee of %s '
                      'and has been marked inactive in SAPSF. Now marking inactive internally.',
                      ecu.username, ecu.user_id, ecu.user_email, ecu.enterprise_customer
                  )
                  return
          super(SapSuccessFactorsLearnerTransmitter, self).handle_transmission_error(learner_data, request_exception)
docs: Handle the case where the employee on SAPSF's side is marked as inactive.