diff --git a/src/monitoring/service/EventTools.py b/src/monitoring/service/EventTools.py
index be3fe9b92c4867b66c562b8f0f0b35148e249cac..4dea8221b294ef08bf85b1b1e3cf38225141e8fe 100644
--- a/src/monitoring/service/EventTools.py
+++ b/src/monitoring/service/EventTools.py
@@ -18,6 +18,7 @@ from common.method_wrappers.ServiceExceptions import ServiceException
 from common.proto import monitoring_pb2
 from common.proto.context_pb2 import ConfigActionEnum, DeviceOperationalStatusEnum, Empty, EventTypeEnum
 from common.proto.kpi_sample_types_pb2 import KpiSampleType
+from common.tools.grpc.Tools import grpc_message_to_json_string
 from context.client.ContextClient import ContextClient
 from monitoring.client.MonitoringClient import MonitoringClient
 from monitoring.service.MonitoringServiceServicerImpl import LOGGER
@@ -86,10 +87,12 @@ class EventsDeviceCollector:
                     event_type = event.event.event_type
                     device_uuid = event.device_id.device_uuid.uuid
                     if event_type in {EventTypeEnum.EVENTTYPE_REMOVE}:
+                        LOGGER.info('removing device')
                         self._device_to_state.pop(device_uuid, None)
                         continue
 
                     if event_type not in {EventTypeEnum.EVENTTYPE_CREATE, EventTypeEnum.EVENTTYPE_UPDATE}:
+                        LOGGER.info('unexpected event')
                         # Unknown event type
                         continue
 
@@ -97,37 +100,68 @@ class EventsDeviceCollector:
                     self._name_mapping.set_device_name(device_uuid, device.name)
 
                     old_operational_status = self._device_to_state.get(device_uuid, DEVICE_OP_STATUS_UNDEFINED)
+                    LOGGER.info('old_operational_status={:s}'.format(str(old_operational_status)))
                     device_was_not_enabled = (old_operational_status in DEVICE_OP_STATUS_NOT_ENABLED)
+                    LOGGER.info('device_was_not_enabled={:s}'.format(str(device_was_not_enabled)))
 
                     new_operational_status = device.device_operational_status
+                    LOGGER.info('new_operational_status={:s}'.format(str(new_operational_status)))
                     device_is_enabled = (new_operational_status == DEVICE_OP_STATUS_ENABLED)
+                    LOGGER.info('device_is_enabled={:s}'.format(str(device_is_enabled)))
                     self._device_to_state[device_uuid] = new_operational_status
 
                     activate_monitoring = device_was_not_enabled and device_is_enabled
+                    LOGGER.info('activate_monitoring={:s}'.format(str(activate_monitoring)))
                     if not activate_monitoring:
+                        LOGGER.info('device not ready for activation')
                         # device is not ready for monitoring
                         continue
 
+                    LOGGER.info('checking endpoints')
+
                     enabled_endpoint_names = set()
                     for config_rule in device.device_config.config_rules:
-                        if config_rule.action != ConfigActionEnum.CONFIGACTION_SET: continue
-                        if config_rule.WhichOneof('config_rule') != 'custom': continue
+                        LOGGER.info(grpc_message_to_json_string(config_rule))
+                        if config_rule.action != ConfigActionEnum.CONFIGACTION_SET:
+                            LOGGER.info('  not set config rule')
+                            continue
+                        if config_rule.WhichOneof('config_rule') != 'custom':
+                            LOGGER.info('  not custom')
+                            continue
                         str_resource_key = str(config_rule.custom.resource_key)
-                        if not str_resource_key.startswith('/interface['): continue
+                        LOGGER.info('  str_resource_key={:s}'.format(str(str_resource_key)))
+                        if not str_resource_key.startswith('/interface['):
+                            LOGGER.info('  not /interface')
+                            continue
                         json_resource_value = json.loads(config_rule.custom.resource_value)
-                        if 'name' not in json_resource_value: continue
-                        if 'enabled' not in json_resource_value: continue
-                        if not json_resource_value['enabled']: continue
+                        LOGGER.info('  json_resource_value={:s}'.format(str(json_resource_value)))
+                        if 'name' not in json_resource_value:
+                            LOGGER.info('  missing name')
+                            continue
+                        if 'enabled' not in json_resource_value:
+                            LOGGER.info('  missing enabled')
+                            continue
+                        if not json_resource_value['enabled']:
+                            LOGGER.info('  not enabled')
+                            continue
+                        LOGGER.info('  enabled')
                         enabled_endpoint_names.add(json_resource_value['name'])
 
+                    LOGGER.info('enabled_endpoint_names={:s}'.format(str(enabled_endpoint_names)))
+
                     for endpoint in device.device_endpoints:
-                        if endpoint.name not in enabled_endpoint_names: continue
+                        LOGGER.info('  endpoint: {:s}'.format(str(endpoint.name)))
+                        if endpoint.name not in enabled_endpoint_names:
+                            LOGGER.info('  skipping not enabled')
+                            continue
 
                         endpoint_uuid = endpoint.endpoint_id.endpoint_uuid.uuid
                         self._name_mapping.set_endpoint_name(endpoint_uuid, endpoint.name)
 
                         for value in endpoint.kpi_sample_types:
-                            if value == KPISAMPLETYPE_UNKNOWN: continue
+                            if value == KPISAMPLETYPE_UNKNOWN:
+                                LOGGER.info('  unknown kpi sample type')
+                                continue
 
                             kpi_descriptor = monitoring_pb2.KpiDescriptor()
                             kpi_descriptor.kpi_description = device.device_type