diff --git a/application/src/main/java/org/thingsboard/server/controller/EdgeController.java b/application/src/main/java/org/thingsboard/server/controller/EdgeController.java
index 4dcffa605e..990343350d 100644
--- a/application/src/main/java/org/thingsboard/server/controller/EdgeController.java
+++ b/application/src/main/java/org/thingsboard/server/controller/EdgeController.java
@@ -32,6 +32,7 @@ import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
 import org.springframework.web.bind.annotation.ResponseStatus;
 import org.springframework.web.bind.annotation.RestController;
+import org.thingsboard.rule.engine.flow.TbRuleChainInputNode;
 import org.thingsboard.server.common.data.Customer;
 import org.thingsboard.server.common.data.EntitySubtype;
 import org.thingsboard.server.common.data.edge.Edge;
@@ -557,7 +558,7 @@ public class EdgeController extends BaseController {
             edgeId = checkNotNull(edgeId);
             SecurityUser user = getCurrentUser();
             TenantId tenantId = user.getTenantId();
-            return edgeService.findMissingToRelatedRuleChains(tenantId, edgeId);
+            return edgeService.findMissingToRelatedRuleChains(tenantId, edgeId, TbRuleChainInputNode.class.getName());
         } catch (Exception e) {
             throw handleException(e);
         }
diff --git a/application/src/main/java/org/thingsboard/server/service/edge/rpc/constructor/RuleChainMsgConstructor.java b/application/src/main/java/org/thingsboard/server/service/edge/rpc/constructor/RuleChainMsgConstructor.java
index 0fc62cfe41..db67ecf822 100644
--- a/application/src/main/java/org/thingsboard/server/service/edge/rpc/constructor/RuleChainMsgConstructor.java
+++ b/application/src/main/java/org/thingsboard/server/service/edge/rpc/constructor/RuleChainMsgConstructor.java
@@ -21,7 +21,9 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
 import org.thingsboard.common.util.JacksonUtil;
+import org.thingsboard.rule.engine.flow.TbRuleChainInputNode;
 import org.thingsboard.rule.engine.flow.TbRuleChainInputNodeConfiguration;
+import org.thingsboard.rule.engine.flow.TbRuleChainOutputNode;
 import org.thingsboard.server.common.data.id.RuleChainId;
 import org.thingsboard.server.common.data.rule.NodeConnectionInfo;
 import org.thingsboard.server.common.data.rule.RuleChain;
@@ -49,9 +51,8 @@ import java.util.stream.Collectors;
 @TbCoreComponent
 public class RuleChainMsgConstructor {
 
-    private static final ObjectMapper objectMapper = new ObjectMapper();
-    private static final String RULE_CHAIN_INPUT_NODE = "org.thingsboard.rule.engine.flow.TbRuleChainInputNode";
-    private static final String TB_RULE_CHAIN_OUTPUT_NODE = "org.thingsboard.rule.engine.flow.TbRuleChainOutputNode";
+    private static final String RULE_CHAIN_INPUT_NODE = TbRuleChainInputNode.class.getName();
+    private static final String TB_RULE_CHAIN_OUTPUT_NODE = TbRuleChainOutputNode.class.getName();
 
     public RuleChainUpdateMsg constructRuleChainUpdatedMsg(RuleChainId edgeRootRuleChainId, UpdateMsgType msgType, RuleChain ruleChain) {
         RuleChainUpdateMsg.Builder builder = RuleChainUpdateMsg.newBuilder()
@@ -210,13 +211,11 @@ public class RuleChainMsgConstructor {
     private List<RuleNode> filterNodes_V_3_3_0(List<RuleNode> nodes) {
         List<RuleNode> result = new ArrayList<>();
         for (RuleNode node : nodes) {
-            switch (node.getType()) {
-                case RULE_CHAIN_INPUT_NODE:
-                case TB_RULE_CHAIN_OUTPUT_NODE:
-                    log.trace("Skipping not supported rule node {}", node);
-                    break;
-                default:
-                    result.add(node);
+            if (RULE_CHAIN_INPUT_NODE.equals(node.getType())
+                    || TB_RULE_CHAIN_OUTPUT_NODE.equals(node.getType())) {
+                log.trace("Skipping not supported rule node {}", node);
+            } else {
+                result.add(node);
             }
         }
         return result;
@@ -280,7 +279,7 @@ public class RuleChainMsgConstructor {
                 .setTargetRuleChainIdMSB(ruleChainConnectionInfo.getTargetRuleChainId().getId().getMostSignificantBits())
                 .setTargetRuleChainIdLSB(ruleChainConnectionInfo.getTargetRuleChainId().getId().getLeastSignificantBits())
                 .setType(ruleChainConnectionInfo.getType())
-                .setAdditionalInfo(objectMapper.writeValueAsString(additionalInfo))
+                .setAdditionalInfo(JacksonUtil.OBJECT_MAPPER.writeValueAsString(additionalInfo))
                 .build();
     }
 
@@ -291,8 +290,8 @@ public class RuleChainMsgConstructor {
                 .setType(node.getType())
                 .setName(node.getName())
                 .setDebugMode(node.isDebugMode())
-                .setConfiguration(objectMapper.writeValueAsString(node.getConfiguration()))
-                .setAdditionalInfo(objectMapper.writeValueAsString(node.getAdditionalInfo()))
+                .setConfiguration(JacksonUtil.OBJECT_MAPPER.writeValueAsString(node.getConfiguration()))
+                .setAdditionalInfo(JacksonUtil.OBJECT_MAPPER.writeValueAsString(node.getAdditionalInfo()))
                 .build();
     }
 
diff --git a/common/dao-api/src/main/java/org/thingsboard/server/dao/edge/EdgeService.java b/common/dao-api/src/main/java/org/thingsboard/server/dao/edge/EdgeService.java
index ea95923275..c0c72552f6 100644
--- a/common/dao-api/src/main/java/org/thingsboard/server/dao/edge/EdgeService.java
+++ b/common/dao-api/src/main/java/org/thingsboard/server/dao/edge/EdgeService.java
@@ -84,5 +84,5 @@ public interface EdgeService {
 
     PageData<EdgeId> findRelatedEdgeIdsByEntityId(TenantId tenantId, EntityId entityId, PageLink pageLink);
 
-    String findMissingToRelatedRuleChains(TenantId tenantId, EdgeId edgeId);
+    String findMissingToRelatedRuleChains(TenantId tenantId, EdgeId edgeId, String tbRuleChainInputNodeClassName);
 }
diff --git a/dao/src/main/java/org/thingsboard/server/dao/edge/EdgeServiceImpl.java b/dao/src/main/java/org/thingsboard/server/dao/edge/EdgeServiceImpl.java
index 8dc764148e..9eee9e4774 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/edge/EdgeServiceImpl.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/edge/EdgeServiceImpl.java
@@ -15,7 +15,6 @@
  */
 package org.thingsboard.server.dao.edge;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.base.Function;
@@ -27,6 +26,7 @@ import org.hibernate.exception.ConstraintViolationException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.event.TransactionalEventListener;
+import org.thingsboard.common.util.JacksonUtil;
 import org.thingsboard.server.common.data.EntitySubtype;
 import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.StringUtils;
@@ -46,7 +46,7 @@ import org.thingsboard.server.common.data.page.PageLink;
 import org.thingsboard.server.common.data.relation.EntityRelation;
 import org.thingsboard.server.common.data.relation.EntitySearchDirection;
 import org.thingsboard.server.common.data.rule.RuleChain;
-import org.thingsboard.server.common.data.rule.RuleChainConnectionInfo;
+import org.thingsboard.server.common.data.rule.RuleNode;
 import org.thingsboard.server.dao.entity.AbstractCachedEntityService;
 import org.thingsboard.server.dao.exception.DataValidationException;
 import org.thingsboard.server.dao.relation.RelationService;
@@ -62,6 +62,7 @@ import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 import java.util.Optional;
+import java.util.UUID;
 import java.util.stream.Collectors;
 
 import static org.thingsboard.server.dao.DaoUtil.toUUIDs;
@@ -78,8 +79,6 @@ public class EdgeServiceImpl extends AbstractCachedEntityService<EdgeCacheKey, E
     public static final String INCORRECT_CUSTOMER_ID = "Incorrect customerId ";
     public static final String INCORRECT_EDGE_ID = "Incorrect edgeId ";
 
-    private static final ObjectMapper mapper = new ObjectMapper();
-
     private static final int DEFAULT_PAGE_SIZE = 1000;
 
     @Autowired
@@ -451,16 +450,19 @@ public class EdgeServiceImpl extends AbstractCachedEntityService<EdgeCacheKey, E
     }
 
     @Override
-    public String findMissingToRelatedRuleChains(TenantId tenantId, EdgeId edgeId) {
+    public String findMissingToRelatedRuleChains(TenantId tenantId, EdgeId edgeId, String tbRuleChainInputNodeClassName) {
         List<RuleChain> edgeRuleChains = findEdgeRuleChains(tenantId, edgeId);
         List<RuleChainId> edgeRuleChainIds = edgeRuleChains.stream().map(IdBased::getId).collect(Collectors.toList());
-        ObjectNode result = mapper.createObjectNode();
+        ObjectNode result = JacksonUtil.OBJECT_MAPPER.createObjectNode();
         for (RuleChain edgeRuleChain : edgeRuleChains) {
-            List<RuleChainConnectionInfo> connectionInfos =
-                    ruleChainService.loadRuleChainMetaData(edgeRuleChain.getTenantId(), edgeRuleChain.getId()).getRuleChainConnections();
-            if (connectionInfos != null && !connectionInfos.isEmpty()) {
+            List<RuleNode> ruleNodes =
+                    ruleChainService.loadRuleChainMetaData(edgeRuleChain.getTenantId(), edgeRuleChain.getId()).getNodes();
+            if (ruleNodes != null && !ruleNodes.isEmpty()) {
                 List<RuleChainId> connectedRuleChains =
-                        connectionInfos.stream().map(RuleChainConnectionInfo::getTargetRuleChainId).collect(Collectors.toList());
+                        ruleNodes.stream()
+                                .filter(rn -> rn.getType().equals(tbRuleChainInputNodeClassName))
+                                .map(rn -> new RuleChainId(UUID.fromString(rn.getConfiguration().get("ruleChainId").asText())))
+                                .collect(Collectors.toList());
                 List<String> missingRuleChains = new ArrayList<>();
                 for (RuleChainId connectedRuleChain : connectedRuleChains) {
                     if (!edgeRuleChainIds.contains(connectedRuleChain)) {
@@ -469,7 +471,7 @@ public class EdgeServiceImpl extends AbstractCachedEntityService<EdgeCacheKey, E
                     }
                 }
                 if (!missingRuleChains.isEmpty()) {
-                    ArrayNode array = mapper.createArrayNode();
+                    ArrayNode array = JacksonUtil.OBJECT_MAPPER.createArrayNode();
                     for (String missingRuleChain : missingRuleChains) {
                         array.add(missingRuleChain);
                     }
diff --git a/dao/src/test/java/org/thingsboard/server/dao/service/BaseEdgeServiceTest.java b/dao/src/test/java/org/thingsboard/server/dao/service/BaseEdgeServiceTest.java
index 0bbbf82452..093bd386a7 100644
--- a/dao/src/test/java/org/thingsboard/server/dao/service/BaseEdgeServiceTest.java
+++ b/dao/src/test/java/org/thingsboard/server/dao/service/BaseEdgeServiceTest.java
@@ -16,11 +16,13 @@
 package org.thingsboard.server.dao.service;
 
 import com.datastax.oss.driver.api.core.uuid.Uuids;
+import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.apache.commons.lang3.RandomStringUtils;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
+import org.thingsboard.common.util.JacksonUtil;
 import org.thingsboard.server.common.data.Customer;
 import org.thingsboard.server.common.data.EntitySubtype;
 import org.thingsboard.server.common.data.Tenant;
@@ -29,9 +31,14 @@ import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.page.PageData;
 import org.thingsboard.server.common.data.page.PageLink;
+import org.thingsboard.server.common.data.rule.RuleChain;
+import org.thingsboard.server.common.data.rule.RuleChainMetaData;
+import org.thingsboard.server.common.data.rule.RuleChainType;
+import org.thingsboard.server.common.data.rule.RuleNode;
 import org.thingsboard.server.dao.exception.DataValidationException;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
@@ -602,4 +609,55 @@ public abstract class BaseEdgeServiceTest extends AbstractServiceTest {
         edgeService.deleteEdge(tenantId, savedEdge.getId());
     }
 
-}
\ No newline at end of file
+    @Test
+    public void testFindMissingToRelatedRuleChains() {
+        Edge edge = constructEdge("My edge", "default");
+        Edge savedEdge = edgeService.saveEdge(edge);
+
+        RuleChain ruleChain = new RuleChain();
+        ruleChain.setTenantId(tenantId);
+        ruleChain.setName("Rule Chain #1");
+        ruleChain.setType(RuleChainType.EDGE);
+        RuleChain ruleChain1 = ruleChainService.saveRuleChain(ruleChain);
+
+        ruleChain = new RuleChain();
+        ruleChain.setTenantId(tenantId);
+        ruleChain.setName("Rule Chain #2");
+        ruleChain.setType(RuleChainType.EDGE);
+        RuleChain ruleChain2 = ruleChainService.saveRuleChain(ruleChain);
+
+        ruleChain = new RuleChain();
+        ruleChain.setTenantId(tenantId);
+        ruleChain.setName("Rule Chain #3");
+        ruleChain.setType(RuleChainType.EDGE);
+        RuleChain ruleChain3 = ruleChainService.saveRuleChain(ruleChain);
+
+        RuleNode ruleNode1 = new RuleNode();
+        ruleNode1.setName("Input rule node 1");
+        ruleNode1.setType("org.thingsboard.rule.engine.flow.TbRuleChainInputNode");
+        ObjectNode configuration = JacksonUtil.OBJECT_MAPPER.createObjectNode();
+        configuration.put("ruleChainId", ruleChain1.getUuidId().toString());
+        ruleNode1.setConfiguration(configuration);
+
+        RuleNode ruleNode2 = new RuleNode();
+        ruleNode2.setName("Input rule node 2");
+        ruleNode2.setType("org.thingsboard.rule.engine.flow.TbRuleChainInputNode");
+        configuration = JacksonUtil.OBJECT_MAPPER.createObjectNode();
+        configuration.put("ruleChainId", ruleChain2.getUuidId().toString());
+        ruleNode2.setConfiguration(configuration);
+
+        RuleChainMetaData ruleChainMetaData3 = new RuleChainMetaData();
+        ruleChainMetaData3.setNodes(Arrays.asList(ruleNode1, ruleNode2));
+        ruleChainMetaData3.setFirstNodeIndex(0);
+        ruleChainMetaData3.setRuleChainId(ruleChain3.getId());
+        ruleChainService.saveRuleChainMetaData(tenantId, ruleChainMetaData3);
+
+        ruleChainService.assignRuleChainToEdge(tenantId, ruleChain3.getId(), savedEdge.getId());
+
+        String missingToRelatedRuleChains = edgeService.findMissingToRelatedRuleChains(tenantId,
+                savedEdge.getId(),
+                "org.thingsboard.rule.engine.flow.TbRuleChainInputNode");
+        Assert.assertEquals("{\"Rule Chain #3\":[\"Rule Chain #1\",\"Rule Chain #2\"]}", missingToRelatedRuleChains);
+    }
+
+}