diff --git a/lib/modules/asset/AssetHistoryService.ts b/lib/modules/asset/AssetHistoryService.ts
index 191add01..d669cd1c 100644
--- a/lib/modules/asset/AssetHistoryService.ts
+++ b/lib/modules/asset/AssetHistoryService.ts
@@ -1,12 +1,7 @@
-import { PluginContext } from "kuzzle";
 import { mCreateRequest } from "kuzzle-sdk";
 
-import {
-  DeviceManagerConfiguration,
-  DeviceManagerPlugin,
-  InternalCollection,
-} from "../plugin";
-import { onAsk } from "../shared";
+import { DeviceManagerPlugin, InternalCollection } from "../plugin";
+import { onAsk, BaseService } from "../shared";
 
 import { AskAssetHistoryAdd } from "./types/AssetEvents";
 import {
@@ -14,17 +9,9 @@ import {
   AssetHistoryEvent,
 } from "./types/AssetHistoryContent";
 
-export class AssetHistoryService {
-  private context: PluginContext;
-  private config: DeviceManagerConfiguration;
-
-  private get sdk() {
-    return this.context.accessors.sdk;
-  }
-
+export class AssetHistoryService extends BaseService {
   constructor(plugin: DeviceManagerPlugin) {
-    this.context = plugin.context;
-    this.config = plugin.config;
+    super(plugin);
 
     onAsk<AskAssetHistoryAdd<AssetHistoryEvent>>(
       "ask:device-manager:asset:history:add",
diff --git a/lib/modules/asset/AssetService.ts b/lib/modules/asset/AssetService.ts
index 461be2ec..05669225 100644
--- a/lib/modules/asset/AssetService.ts
+++ b/lib/modules/asset/AssetService.ts
@@ -1,4 +1,9 @@
-import { Backend, BadRequestError, PluginContext, User } from "kuzzle";
+import {
+  BadRequestError,
+  EventGenericDocumentBeforeWrite,
+  KuzzleRequest,
+  User,
+} from "kuzzle";
 import {
   BaseRequest,
   DocumentSearchResult,
@@ -19,7 +24,6 @@ import {
 import { AskModelAssetGet, AssetModelContent } from "../model";
 import {
   AskEngineList,
-  DeviceManagerConfiguration,
   DeviceManagerPlugin,
   InternalCollection,
 } from "../plugin";
@@ -30,6 +34,7 @@ import {
   flattenObject,
   lock,
   onAsk,
+  BaseService,
 } from "../shared";
 
 import { AssetHistoryService } from "./AssetHistoryService";
@@ -46,35 +51,15 @@ import {
 } from "./types/AssetHistoryContent";
 import { ApiAssetMigrateTenantResult } from "./types/AssetApi";
 
-export class AssetService {
-  private context: PluginContext;
-  private config: DeviceManagerConfiguration;
+export class AssetService extends BaseService {
   private assetHistoryService: AssetHistoryService;
 
-  private get sdk() {
-    return this.context.accessors.sdk;
-  }
-
-  private get app(): Backend {
-    return global.app;
-  }
-
-  private get impersonatedSdk() {
-    return (user: User) => {
-      if (user?._id) {
-        return this.sdk.as(user, { checkRights: false });
-      }
-
-      return this.sdk;
-    };
-  }
-
   constructor(
     plugin: DeviceManagerPlugin,
     assetHistoryService: AssetHistoryService
   ) {
-    this.context = plugin.context;
-    this.config = plugin.config;
+    super(plugin);
+
     this.assetHistoryService = assetHistoryService;
 
     this.registerAskEvents();
@@ -327,7 +312,7 @@ export class AssetService {
       errors = errors.concat(...assets.errors);
 
       if (assets.successes.length === 0) {
-        this.context.log.error("No assets found to migrate");
+        this.app.log.error("No assets found to migrate");
         return { errors, successes };
       }
 
diff --git a/lib/modules/decoder/PayloadService.ts b/lib/modules/decoder/PayloadService.ts
index f24be551..f82bef83 100644
--- a/lib/modules/decoder/PayloadService.ts
+++ b/lib/modules/decoder/PayloadService.ts
@@ -1,15 +1,11 @@
-import { Backend, BadRequestError, KuzzleRequest, PluginContext } from "kuzzle";
+import { BadRequestError, KuzzleRequest } from "kuzzle";
 import { JSONObject, KDocument } from "kuzzle-sdk";
 import { v4 as uuidv4 } from "uuid";
 
-import {
-  DeviceManagerPlugin,
-  DeviceManagerConfiguration,
-  InternalCollection,
-} from "../plugin";
+import { DeviceManagerPlugin, InternalCollection } from "../plugin";
 import { DeviceContent, DeviceSerializer } from "../device";
 import { AskMeasureIngest, DecodedMeasurement } from "../measure";
-import { ask, onAsk } from "../shared";
+import { BaseService, ask, onAsk } from "../shared";
 
 import { DecodedPayload } from "./DecodedPayload";
 import { Decoder } from "./Decoder";
@@ -17,21 +13,9 @@ import { AskPayloadReceiveFormated } from "./types/PayloadEvents";
 import { DecodingState } from "./DecodingState";
 import { SkipError } from "./SkipError";
 
-export class PayloadService {
-  private config: DeviceManagerConfiguration;
-  private context: PluginContext;
-
-  private get sdk() {
-    return this.context.accessors.sdk;
-  }
-
-  private get app(): Backend {
-    return global.app;
-  }
-
+export class PayloadService extends BaseService {
   constructor(plugin: DeviceManagerPlugin) {
-    this.config = plugin.config as any;
-    this.context = plugin.context;
+    super(plugin);
 
     onAsk<AskPayloadReceiveFormated>(
       "ask:device-manager:payload:receive-formated",
@@ -162,7 +146,7 @@ export class PayloadService {
         uuid
       );
     } catch (error) {
-      this.context.log.error(
+      this.app.log.error(
         `Cannot save the payload from "${deviceModel}": ${error}`
       );
     }
@@ -203,7 +187,7 @@ export class PayloadService {
         });
         devices.push(...newDevices);
       } else {
-        this.context.log.info(
+        this.app.log.info(
           `Skipping new devices "${errors.join(
             ", "
           )}". Auto-provisioning is disabled.`
@@ -249,7 +233,7 @@ export class PayloadService {
       );
 
     for (const error of errors) {
-      this.context.log.error(
+      this.app.log.error(
         `Cannot create device "${error.document._id}": ${error.reason}`
       );
     }
@@ -281,7 +265,7 @@ export class PayloadService {
       filter.push({ term: { deviceModel } });
     }
 
-    const deleted = await this.context.accessors.sdk.bulk.deleteByQuery(
+    const deleted = await this.sdk.bulk.deleteByQuery(
       this.config.adminIndex,
       "payloads",
       { query: { bool: { filter } } }
diff --git a/lib/modules/device/DeviceService.ts b/lib/modules/device/DeviceService.ts
index 03ee6c04..1b65a778 100644
--- a/lib/modules/device/DeviceService.ts
+++ b/lib/modules/device/DeviceService.ts
@@ -1,4 +1,4 @@
-import { Backend, BadRequestError, Plugin, PluginContext, User } from "kuzzle";
+import { BadRequestError, User } from "kuzzle";
 import { JSONObject, KDocument, KHit, SearchResult } from "kuzzle-sdk";
 
 import {
@@ -7,8 +7,8 @@ import {
   AssetHistoryEventLink,
   AssetHistoryEventUnlink,
 } from "./../asset";
-import { InternalCollection, DeviceManagerConfiguration } from "../plugin";
-import { Metadata, lock, ask, onAsk } from "../shared";
+import { InternalCollection, DeviceManagerPlugin } from "../plugin";
+import { Metadata, lock, ask, onAsk, BaseService } from "../shared";
 import {
   AskModelAssetGet,
   AskModelDeviceGet,
@@ -32,31 +32,10 @@ import { AskPayloadReceiveFormated } from "../decoder/types/PayloadEvents";
 
 type MeasureName = { asset: string; device: string; type: string };
 
-export class DeviceService {
-  private config: DeviceManagerConfiguration;
-  private context: PluginContext;
+export class DeviceService extends BaseService {
+  constructor(plugin: DeviceManagerPlugin) {
+    super(plugin);
 
-  private get sdk() {
-    return this.context.accessors.sdk;
-  }
-
-  private get app(): Backend {
-    return global.app;
-  }
-
-  private get impersonatedSdk() {
-    return (user: User) => {
-      if (user?._id) {
-        return this.sdk.as(user, { checkRights: false });
-      }
-
-      return this.sdk;
-    };
-  }
-
-  constructor(plugin: Plugin) {
-    this.config = plugin.config as any;
-    this.context = plugin.context;
     this.registerAskEvents();
   }
 
diff --git a/lib/modules/measure/MeasureService.ts b/lib/modules/measure/MeasureService.ts
index 1ebae59a..60675238 100644
--- a/lib/modules/measure/MeasureService.ts
+++ b/lib/modules/measure/MeasureService.ts
@@ -1,10 +1,4 @@
-import {
-  Backend,
-  BadRequestError,
-  JSONObject,
-  KDocument,
-  PluginContext,
-} from "kuzzle";
+import { BadRequestError, JSONObject, KDocument } from "kuzzle";
 import _ from "lodash";
 
 import {
@@ -16,12 +10,16 @@ import {
   AssetSerializer,
 } from "../asset";
 import { DeviceContent } from "../device";
+import { DeviceManagerPlugin, InternalCollection } from "../plugin";
 import {
-  DeviceManagerConfiguration,
-  DeviceManagerPlugin,
-  InternalCollection,
-} from "../plugin";
-import { ask, keepStack, lock, Metadata, objectDiff, onAsk } from "../shared";
+  ask,
+  BaseService,
+  keepStack,
+  lock,
+  Metadata,
+  objectDiff,
+  onAsk,
+} from "../shared";
 
 import { DecodedMeasurement, MeasureContent } from "./types/MeasureContent";
 import {
@@ -34,21 +32,9 @@ import {
   TenantEventMeasureProcessBefore,
 } from "./types/MeasureEvents";
 
-export class MeasureService {
-  private config: DeviceManagerConfiguration;
-  private context: PluginContext;
-
-  private get sdk() {
-    return this.context.accessors.sdk;
-  }
-
-  private get app(): Backend {
-    return global.app;
-  }
-
+export class MeasureService extends BaseService {
   constructor(plugin: DeviceManagerPlugin) {
-    this.config = plugin.config as any;
-    this.context = plugin.context;
+    super(plugin);
 
     onAsk<AskMeasureIngest>(
       "device-manager:measures:ingest",
diff --git a/lib/modules/model/ModelService.ts b/lib/modules/model/ModelService.ts
index a10cc6cf..b1ebff08 100644
--- a/lib/modules/model/ModelService.ts
+++ b/lib/modules/model/ModelService.ts
@@ -1,21 +1,15 @@
-import {
-  BadRequestError,
-  Inflector,
-  NotFoundError,
-  PluginContext,
-} from "kuzzle";
+import { BadRequestError, Inflector, NotFoundError } from "kuzzle";
 import { JSONObject, KDocument } from "kuzzle-sdk";
 
 import {
   AskEngineUpdateAll,
-  DeviceManagerConfiguration,
   DeviceManagerPlugin,
   InternalCollection,
 } from "../plugin";
 import { ask, onAsk } from "../shared/utils/ask";
 
 import { AskAssetRefreshModel } from "../asset";
-import { flattenObject } from "../shared/utils/flattenObject";
+import { BaseService, flattenObject } from "../shared";
 import { ModelSerializer } from "./ModelSerializer";
 import {
   AssetModelContent,
@@ -28,17 +22,9 @@ import {
   AskModelMeasureGet,
 } from "./types/ModelEvents";
 
-export class ModelService {
-  private config: DeviceManagerConfiguration;
-  private context: PluginContext;
-
-  private get sdk() {
-    return this.context.accessors.sdk;
-  }
-
+export class ModelService extends BaseService {
   constructor(plugin: DeviceManagerPlugin) {
-    this.config = plugin.config as any;
-    this.context = plugin.context;
+    super(plugin);
 
     this.registerAskEvents();
   }
diff --git a/lib/modules/shared/services/BaseService.ts b/lib/modules/shared/services/BaseService.ts
new file mode 100644
index 00000000..7828f9dc
--- /dev/null
+++ b/lib/modules/shared/services/BaseService.ts
@@ -0,0 +1,29 @@
+import { Backend, EmbeddedSDK, User } from "kuzzle";
+
+import { DeviceManagerPlugin, DeviceManagerConfiguration } from "../../plugin";
+
+export abstract class BaseService {
+  constructor(private plugin: DeviceManagerPlugin) {}
+
+  protected get app(): Backend {
+    return global.app;
+  }
+
+  protected get sdk(): EmbeddedSDK {
+    return this.plugin.context.accessors.sdk;
+  }
+
+  protected get config(): DeviceManagerConfiguration {
+    return this.plugin.config;
+  }
+
+  protected get impersonatedSdk() {
+    return (user: User) => {
+      if (user?._id) {
+        return this.sdk.as(user, { checkRights: false });
+      }
+
+      return this.sdk;
+    };
+  }
+}
diff --git a/lib/modules/shared/services/index.ts b/lib/modules/shared/services/index.ts
index 2fb46bbf..df182beb 100644
--- a/lib/modules/shared/services/index.ts
+++ b/lib/modules/shared/services/index.ts
@@ -1,2 +1,3 @@
 export * from "./AbstractExporter";
+export * from "./BaseService";
 export * from "./DigitalTwinExporter";