diff --git a/application/src/main/java/org/thingsboard/server/controller/EntitiesExportImportController.java b/application/src/main/java/org/thingsboard/server/controller/EntitiesExportImportController.java
index a6ad9f1ca6..c91fd0c292 100644
--- a/application/src/main/java/org/thingsboard/server/controller/EntitiesExportImportController.java
+++ b/application/src/main/java/org/thingsboard/server/controller/EntitiesExportImportController.java
@@ -15,6 +15,7 @@
  */
 package org.thingsboard.server.controller;
 
+import io.swagger.annotations.ApiOperation;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.security.access.prepost.PreAuthorize;
@@ -39,6 +40,8 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
 
+import static org.thingsboard.server.controller.ControllerConstants.NEW_LINE;
+
 @RestController
 @RequestMapping("/api/entities")
 @TbCoreComponent
@@ -50,6 +53,42 @@ public class EntitiesExportImportController extends BaseController {
     private final ExportableEntitiesService exportableEntitiesService;
 
 
+    @ApiOperation(value = "Export entities by request", notes = "" +
+            "Takes export request and returns list of export data for each entity found by request. " +
+            "Supported entity types for export, hence for import, are **DEVICE**, **DEVICE_PROFILE**, **ASSET**, " +
+            "**CUSTOMER**, **RULE_CHAIN** and **DASHBOARD**." + NEW_LINE +
+            "For each type of export request, you can set some export settings: \n" +
+            "- **exportRelations** - whether to export inbound and outbound relations for an entity " +
+            "(only relations of type group COMMON can be exported)" + NEW_LINE +
+            "Supported export requests:\n" +
+            "- **SINGLE_ENTITY**:" + NEW_LINE +
+            "  To export a single entity by id. Example:" + NEW_LINE +
+            "```\n{\n  \"type\": \"SINGLE_ENTITY\",\n  \"entityId\": {\n    \"entityType\": \"DEVICE\",\n    \"id\": \"2eb16d70-989d-11ec-93b5-6de6c2b68078\"\n  },\n  \"exportSettings\": {\n    \"exportRelations\": false\n  }\n}\n```" + NEW_LINE +
+            "- **ENTITY_LIST**:" + NEW_LINE +
+            "  To export a list of entities by their ids. Example:" + NEW_LINE +
+            "```\n{\n  \"type\": \"ENTITY_LIST\",\n  \"entitiesIds\": [\n    {\n      \"entityType\": \"DEVICE\",\n      \"id\": \"2eb16d70-989d-11ec-93b5-6de6c2b68078\"\n    },\n    {\n      \"entityType\": \"ASSET\",\n      \"id\": \"2f0a3bd0-989d-11ec-93b5-6de6c2b68078\"\n    }\n  ],\n  \"exportSettings\": {\n    \"exportRelations\": true\n  }\n}\n```" + NEW_LINE +
+            "- **ENTITY_TYPE**:" + NEW_LINE +
+            "  To export entities of specified entity type. You need to specify page size, " +
+            "and may specify page index and customer id (to limit the list of entities to the ones owned by a customer). " +
+            "Entities are ordered by created time descendingly. Example:" + NEW_LINE +
+            "```\n{\n  \"type\": \"ENTITY_TYPE\",\n  \"entityType\": \"ASSET\",\n  \"page\": 0,\n  \"pageSize\": 100,\n  \"customerId\": \"2eb16d70-989d-11ec-93b5-6de6c2b68078\"\n}\n```" + NEW_LINE +
+            "- **CUSTOM_ENTITY_FILTER**:" + NEW_LINE +
+            "  To export entities by custom entity filter. The order used is the same as for ENTITY_TYPE export request. Example:" + NEW_LINE +
+            "```\n{\n  \"type\": \"CUSTOM_ENTITY_FILTER\",\n  \"filter\": {\n    \"type\": \"deviceType\",\n    \"deviceType\": \"Thermostats\",\n    \"deviceNameFilter\": \"\"\n  },\n  \"page\": 0,\n  \"pageSize\": 100,\n  \"customerId\": null,\n  \"exportSettings\": {\n    \"exportRelations\": false\n  }\n}\n```" + NEW_LINE +
+            "- **CUSTOM_ENTITY_QUERY**:" + NEW_LINE +
+            "  To export entities by custom entity query. Example: " + NEW_LINE +
+            "```\n{\n  \"type\": \"CUSTOM_ENTITY_QUERY\",\n  \"query\": {\n    \"entityFilter\": {\n      \"type\": \"entityType\",\n      \"entityType\": \"DEVICE\"\n    },\n    \"pageLink\": {\n      \"page\": 0,\n      \"pageSize\": 200,\n      \"textSearch\": \"THB_\",\n      \"sortOrder\": {\n        \"key\": {\n          \"type\": \"ENTITY_FIELD\",\n          \"key\": \"name\"\n        },\n        \"direction\": \"DESC\"\n      }\n    },\n    \"entityFields\": [\n      {\n        \"type\": \"ENTITY_FIELD\",\n        \"key\": \"name\"\n      }\n    ],\n    \"latestValues\": [\n      {\n        \"type\": \"SERVER_ATTRIBUTE\",\n        \"key\": \"lastActivityTime\"\n      }\n    ],\n    \"keyFilters\": [\n      {\n        \"key\": {\n          \"type\": \"SERVER_ATTRIBUTE\",\n          \"key\": \"lastActivityTime\"\n        },\n        \"valueType\": \"NUMERIC\",\n        \"predicate\": {\n          \"type\": \"NUMERIC\",\n          \"operation\": \"GREATER\",\n          \"value\": {\n            \"defaultValue\": 0\n          }\n        }\n      }\n    ]\n  },\n  \"customerId\": null,\n  \"exportSettings\": {\n    \"exportRelations\": false\n  }\n}\n```" + NEW_LINE +
+            "Mostly, export data of an entity contains the whole entity itself and its relations " +
+            "(if option to export relations was enabled):" + NEW_LINE +
+            "```\n[\n  {\n    \"entityType\": \"ASSET\",\n    \"entity\": {\n      \"id\": { ... },\n      \"createdTime\": 1648204424029,\n      \"additionalInfo\": {\n        \"description\": \"\"\n      },\n      \"tenantId\": { ... },\n      \"customerId\": { ... },\n      \"name\": \"Asset 1\",\n      \"type\": \"A\",\n      ...\n    },\n    \"relations\": [\n      {\n        \"from\": {\n          \"entityType\": \"ASSET\",\n          \"id\": ...\n        },\n        \"to\": {\n          \"entityType\": \"DEVICE\",\n          \"id\": ...\n        },\n        \"type\": \"Contains\",\n        \"typeGroup\": \"COMMON\",\n        \"additionalInfo\": {\n          \"a\": \"b\"\n        }\n      }\n    ]\n  }\n]\n```" + NEW_LINE +
+            "For devices, export data will additionally contain device's credentials; for rule chains - its metadata:" + NEW_LINE +
+            "```\n[\n  {\n    \"entityType\": \"DEVICE\",\n    \"entity\": { ... },\n    \"credentials\": {\n      \"id\": { ... },\n      \"createdTime\": 1648829321209,\n      \"deviceId\": { ... },\n      \"credentialsType\": \"ACCESS_TOKEN\",\n      \"credentialsId\": \"5cZEDo45KGW7JgVNv4Ko\",\n      \"credentialsValue\": null\n    }\n  }\n]\n```" + NEW_LINE +
+            "```\n[\n  {\n    \"entityType\": \"RULE_CHAIN\",\n    \"entity\": {\n      \"id\": { ... },\n      \"createdTime\": 1646056614257,\n      \"additionalInfo\": null,\n      \"tenantId\": { ... },\n      \"name\": \"Rule Chain 2\",\n      \"type\": \"CORE\",\n      \"firstRuleNodeId\": { ... },\n      \"root\": false,\n      ...\n    },\n    \"metaData\": {\n      \"ruleChainId\": { ... },\n      \"firstNodeIndex\": 7,\n      \"nodes\": [ ... ],\n      \"connections\": [ ... ],\n      \"ruleChainConnections\": null\n    }\n  }\n]\n```" + NEW_LINE +
+            "Returned export data is to be used later for import request." + NEW_LINE +
+            "If any entity found by request is of unsupported type - an error will be returned.\n" +
+            "Also, if a user does not have a READ permission for an entity (or, if relations are exported, for a bounded entity), " +
+            "access will be denied." +
+            ControllerConstants.TENANT_AUTHORITY_PARAGRAPH)
     @PostMapping("/export")
     @PreAuthorize("hasAuthority('TENANT_ADMIN')")
     public List<EntityExportData<?>> exportEntities(@RequestBody ExportRequest exportRequest) throws ThingsboardException {
@@ -62,6 +101,12 @@ public class EntitiesExportImportController extends BaseController {
         }
     }
 
+    @ApiOperation(value = "Export entities by multiple requests", notes = "" +
+            "The API behaviour is the same as for exporting entities by single request, " +
+            "except that this method takes an array of export requests as a request body." + NEW_LINE +
+            "Example:" + NEW_LINE +
+            "```\n[\n  {\n    \"type\": \"SINGLE_ENTITY\",\n    \"entityId\": {\n      \"entityType\": \"DEVICE_PROFILE\",\n      \"id\": \"5f9eda10-b442-11ec-bbf5-adec34031568\"\n    }\n  },\n  {\n    \"type\": \"CUSTOM_ENTITY_FILTER\",\n    \"filter\": {\n      \"type\": \"deviceType\",\n      \"deviceType\": \"thermostat\",\n      \"deviceNameFilter\": \"\"\n    },\n    \"pageSize\": 1000\n  },\n  {\n    \"type\": \"ENTITY_TYPE\",\n    \"entityType\": \"ASSET\",\n    \"pageSize\": 1000,\n    \"exportSettings\": {\n      \"exportRelations\": true\n    }\n  },\n  {\n    \"type\": \"ENTITY_LIST\",\n    \"entitiesIds\": [\n      {\n        \"entityType\": \"RULE_CHAIN\",\n        \"id\": \"2ef13590-989d-11ec-93b5-6de6c2b68078\"\n      },\n      {\n        \"entityType\": \"RULE_CHAIN\",\n        \"id\": \"e7311ec0-b442-11ec-bbf5-adec34031568\"\n      }\n    ]\n  }\n]\n```" +
+            ControllerConstants.TENANT_AUTHORITY_PARAGRAPH)
     @PostMapping(value = "/export", params = {"multiple"})
     @PreAuthorize("hasAuthority('TENANT_ADMIN')")
     public List<EntityExportData<?>> exportEntities(@RequestBody List<ExportRequest> exportRequests) throws ThingsboardException {
@@ -98,6 +143,34 @@ public class EntitiesExportImportController extends BaseController {
     }
 
 
+    @ApiOperation(value = "Import entities by request", notes = "" +
+            "Takes import request and returns the list of import results. " +
+            "Import request must contain the list of export data and might contain import settings. " + NEW_LINE +
+            "The method creates an entity if it is new in the scope of a tenant, or otherwise updates an existing one. " +
+            "On entity import request, we first try to find an entity within a tenant that has externalId equal " +
+            "to the id in the export data. If the platform fails to do that, we then search for an entity with " +
+            "regular (internal) id like the one in the export data (this is useful in case we are exporting and " +
+            "importing entities within the same tenant). Then, if we still haven't found any entity, if findExistingByName " +
+            "option of the EntityImportSettings is enabled, we will search for the one by its name (this is also useful " +
+            "for avoiding conflicts with default device profile or Root Rule Chain when importing all entities from another " +
+            "tenant). After, if the exported entity is new for this tenant, we simply save it with external id " +
+            "from the export data, and also create relations if any (if updateRelations option is enabled). " +
+            "Otherwise, we will reset all fields of the existing entity to the ones from the export data and save it, " +
+            "and also will update the list of relations (remove the ones that aren't present in the export data, " +
+            "and update or create others), if updateRelations option is enabled." + NEW_LINE +
+            "If an entity contains references to some other entities, like device references certain device profile, " +
+            "we will find this other entity within the tenant by this principle: look for an entity with " +
+            "such external id, or otherwise, internal id. This requires referenced entities to be imported " +
+            "before the referencing entity (if we are importing to another tenant). So, when receiving the list " +
+            "of entities' export data for import, we first try to fix the data order to import 'standalone' entities first." + NEW_LINE +
+            "As for relations importing, they are processed after all entities in the import batch are already saved, " +
+            "and the internal id of a bounded entity is found with the regular principle." + NEW_LINE +
+            "Import of all entities and their relations from the import request is processed in the single transaction, " +
+            "and so everything will be rolled back if the platform fails to e.g. find internal entity by external id. \n" +
+            "Example of import request:\n" +
+            "```\n{\n  \"importSettings\": {\n    \"findExistingByName\": false,\n    \"updateRelations\": false\n  },\n  \"exportDataList\": [\n    {\n      \"entityType\": \"DEVICE_PROFILE\",\n      \"entity\": {\n        \"id\": {\n          \"entityType\": \"DEVICE_PROFILE\",\n          \"id\": \"f84363d0-b442-11ec-bbf5-adec34031568\"\n        },\n        \"createdTime\": 1649096026765,\n        \"tenantId\": {\n          \"entityType\": \"TENANT\",\n          \"id\": \"4c9001b0-b442-11ec-bbf5-adec34031568\"\n        },\n        \"name\": \"Profile 1\",\n        ...\n      }\n    },\n    {\n      \"entityType\": \"DEVICE\",\n      \"entity\": {\n        \"id\": {\n          \"entityType\": \"DEVICE\",\n          \"id\": \"98161420-b4ca-11ec-ab0c-e7744c90d468\"\n        },\n        \"createdTime\": 1649154276962,\n        \"tenantId\": {\n          \"entityType\": \"TENANT\",\n          \"id\": \"4c9001b0-b442-11ec-bbf5-adec34031568\"\n        },\n        \"customerId\": {\n          \"entityType\": \"CUSTOMER\",\n          \"id\": \"13814000-1dd2-11b2-8080-808080808080\"\n        },\n        \"name\": \"Device 1\",\n        \"type\": \"Profile 1\",\n        \"label\": \"v1.0\",\n        \"deviceProfileId\": {\n          \"entityType\": \"DEVICE_PROFILE\",\n          \"id\": \"f84363d0-b442-11ec-bbf5-adec34031568\"\n        },\n        ...\n      },\n      \"credentials\": {\n        \"id\": {\n          \"id\": \"981e0360-b4ca-11ec-ab0c-e7744c90d468\"\n        },\n        \"createdTime\": 1649154277014,\n        \"deviceId\": {\n          \"entityType\": \"DEVICE\",\n          \"id\": \"98161420-b4ca-11ec-ab0c-e7744c90d468\"\n        },\n        \"credentialsType\": \"ACCESS_TOKEN\",\n        \"credentialsId\": \"sGExNdnl71uKmkNvtNdp\",\n        \"credentialsValue\": null\n      }\n    }\n  ]\n}\n```" + NEW_LINE +
+            "The response contains a list of EntityImportResult which has values of savedEntity and oldEntity:\n" +
+            "```\n[\n  {\n    \"savedEntity\": {\n      \"id\": {\n        \"entityType\": \"ASSET\",\n        \"id\": \"d73d7690-b4e6-11ec-b9eb-0562e1a20a1b\"\n      },\n      \"createdTime\": 1649166408825,\n      \"additionalInfo\": {\n        \"description\": \"\"\n      },\n      \"tenantId\": {\n        \"entityType\": \"TENANT\",\n        \"id\": \"c0b2e4f0-b4e6-11ec-b9eb-0562e1a20a1b\"\n      },\n      \"name\": \"Asset 1\",\n      \"type\": \"A\",\n      \"label\": \"v2.0\",\n      ...\n      \"externalId\": {\n        \"entityType\": \"ASSET\",\n        \"id\": \"6b03ab20-989e-11ec-b446-89df822d7fa2\"\n      }\n    },\n    \"oldEntity\": {\n      \"id\": {\n        \"entityType\": \"ASSET\",\n        \"id\": \"d73d7690-b4e6-11ec-b9eb-0562e1a20a1b\"\n      },\n      \"createdTime\": 1649166408825,\n      \"tenantId\": {\n        \"entityType\": \"TENANT\",\n        \"id\": \"c0b2e4f0-b4e6-11ec-b9eb-0562e1a20a1b\"\n      },\n      \"name\": \"Asset 1\",\n      \"type\": \"A\",\n      \"label\": \"v1.0\",\n      ...\n      \"externalId\": null\n    },\n    \"entityType\": \"ASSET\"\n  },\n  {\n    \"savedEntity\": {\n      \"id\": {\n        \"entityType\": \"ASSET\",\n        \"id\": \"387213f0-b4ea-11ec-abfc-6dcc6508d0b5\"\n      },\n      \"createdTime\": 1649167860399,\n      \"tenantId\": {\n        \"entityType\": \"TENANT\",\n        \"id\": \"c0b2e4f0-b4e6-11ec-b9eb-0562e1a20a1b\"\n      },\n      \"name\": \"Asset 2\",\n      \"type\": \"B\",\n      ...\n      \"externalId\": {\n        \"entityType\": \"ASSET\",\n        \"id\": \"0b9ea0d0-ac27-11ec-a2a6-89d15eae3b21\"\n      }\n    },\n    \"oldEntity\": null,\n    \"entityType\": \"ASSET\"\n  }\n]\n```")
     @PostMapping("/import")
     public List<EntityImportResult<?>> importEntities(@RequestBody ImportRequest importRequest) throws ThingsboardException {
         SecurityUser user = getCurrentUser();