diff --git a/osm_mon/collector/vnf_collectors/juju.py b/osm_mon/collector/vnf_collectors/juju.py
index 7e639b5..36aabab 100644
--- a/osm_mon/collector/vnf_collectors/juju.py
+++ b/osm_mon/collector/vnf_collectors/juju.py
@@ -78,77 +78,53 @@
             tags["project_id"] = ""
 
         metrics = []
-        for vdur in vnfr["vdur"]:
-            # This avoids errors when vdur records have not been completely filled
-            if "name" not in vdur:
-                continue
-            vdu = next(filter(lambda vdu: vdu["id"] == vdur["vdu-id-ref"], vnfd["vdu"]))
-            if "vdu-configuration" in vdu and "metrics" in vdu["vdu-configuration"]:
-                try:
-                    vca_deployment_info = self.get_vca_deployment_info(
-                        nsr_id,
-                        vnf_member_index,
-                        vdur["vdu-id-ref"],
-                        vdur["count-index"],
-                    )
-                except VcaDeploymentInfoNotFound as e:
-                    log.warning(repr(e))
-                    continue
-                measures = self.loop.run_until_complete(
-                    self.n2vc.get_metrics(
-                        vca_deployment_info["model"],
-                        vca_deployment_info["application"],
-                        vca_id=vnfr.get("vca-id"),
-                    )
-                )
-                log.debug("Measures: %s", measures)
-                for measure_list in measures.values():
-                    for measure in measure_list:
-                        log.debug("Measure: %s", measure)
-                        metric = VnfMetric(
+        vdur = None
+        lcm_ops = vnfd["df"][0].get("lcm-operations-configuration")
+        if not lcm_ops:
+            return metrics
+        ops_config = lcm_ops.get("operate-vnf-op-config")
+        if not ops_config:
+            return metrics
+        day12ops = ops_config.get("day1-2", [])
+        for day12op in day12ops:
+            if day12op and "metrics" in day12op:
+                vdur = next(filter(lambda vdur: vdur["vdu-id-ref"] == day12op["id"], vnfr["vdur"]))
+
+                # This avoids errors when vdur records have not been completely filled
+                if vdur and "name" in vdur:
+                    try:
+                        vca_deployment_info = self.get_vca_deployment_info(
                             nsr_id,
                             vnf_member_index,
-                            vdur["name"],
-                            measure["key"],
-                            float(measure["value"]),
-                            tags,
+                            vdur["vdu-id-ref"],
+                            vdur["count-index"],
                         )
-                        metrics.append(metric)
-        if "vnf-configuration" in vnfd and "metrics" in vnfd["vnf-configuration"]:
-            try:
-                vca_deployment_info = self.get_vca_deployment_info(
-                    nsr_id, vnf_member_index
-                )
-            except VcaDeploymentInfoNotFound as e:
-                log.warning(repr(e))
-                return metrics
-            measures = self.loop.run_until_complete(
-                self.n2vc.get_metrics(
-                    vca_deployment_info["model"],
-                    vca_deployment_info["application"],
-                    vca_id=vnfr.get("vca-id"),
-                )
-            )
-            # Search for Mgmt VDU name, needed to query Prometheus based on alarm tags
-            # TODO: check a better way to look for Mgmt VDU
-            for vdur in vnfr["vdur"]:
-                for interface in vdur["interfaces"]:
-                    if "mgmt-vnf" in interface:
-                        vdu_name = vdur["name"]
-                        break
-            log.debug("Measures: %s", measures)
-            for measure_list in measures.values():
-                for measure in measure_list:
-                    log.debug("Measure: %s", measure)
-                    metric = VnfMetric(
-                        nsr_id,
-                        vnf_member_index,
-                        vdu_name,
-                        measure["key"],
-                        float(measure["value"]),
-                        tags,
-                    )
-                    metrics.append(metric)
+                    except VcaDeploymentInfoNotFound as e:
+                        log.warning(repr(e))
+                        continue
+                    # This avoids errors before application and model is not ready till they are occured
+                    if vca_deployment_info.get("model") and vca_deployment_info.get("application"):
+                        measures = self.loop.run_until_complete(
+                            self.n2vc.get_metrics(
+                                vca_deployment_info["model"],
+                                vca_deployment_info["application"],
+                                vca_id=vnfr.get("vca-id"),
+                                )
+                            )
+                        log.debug("Measures: %s", measures)
+                        for measure_list in measures.values():
+                            for measure in measure_list:
+                                log.debug("Measure: %s", measure)
+                                metric = VnfMetric(
+                                    nsr_id,
+                                    vnf_member_index,
+                                    vdur["name"],
+                                    measure["key"],
+                                    float(measure["value"]),
+                                    tags,
+                                )
+                                metrics.append(metric)
+
         return metrics
 
     def get_vca_deployment_info(