diff --git a/MEC010-2_AppLcm.yaml b/MEC010-2_AppLcm.yaml
index 5fabe92fd13f9e611d05337f5ec3da7cd4991870..eeea7ab45509123147ee9f1e3e9664b79d3f903b 100644
--- a/MEC010-2_AppLcm.yaml
+++ b/MEC010-2_AppLcm.yaml
@@ -218,6 +218,26 @@ paths:
           $ref: '#/components/responses/406'
         '429':
           $ref: '#/components/responses/429' 
+      callbacks:
+        notification:
+          '{$request.body#/callbackUri}':
+            post:
+              summary: 'Callback POST used to send a notification'
+              description: 'Notification for informing the subscribers about operational state of application instance resources or state changes of an application LCM operation occurrence. It depends on subscription type.'
+              operationId: notificationPOST
+              requestBody:
+                description: Subscription notification
+                required: true
+                content:
+                  application/json:
+                    schema:
+                      oneOf:
+                      - $ref: '#/components/schemas/AppInstNotification'
+                      - $ref: '#/components/schemas/AppLcmOpOccNotification'        
+              responses:
+                '204':
+                  $ref: '#/components/responses/204'
+
     get:
       tags:
       - ''
diff --git a/MEC010-2_AppPkgMgmt.yaml b/MEC010-2_AppPkgMgmt.yaml
index 353ba455ca45c64536629517f9d1b3fed1e07521..a3fe87df047ef23e919882163b7bef9672c9729a 100644
--- a/MEC010-2_AppPkgMgmt.yaml
+++ b/MEC010-2_AppPkgMgmt.yaml
@@ -236,7 +236,24 @@ paths:
           $ref: '#/components/responses/406'
         '429':
           $ref: '#/components/responses/429'
-          
+      callbacks:
+        notification:
+          '{$request.body#/subscription.href}':
+            post:
+              summary: 'Callback POST used to send a notification'
+              description: ' The notification is triggered when a new application package is onboarded'
+              operationId: notificationPOST
+              requestBody:
+                description: Subscription notification
+                required: true
+                content:
+                  application/json:
+                    schema:
+                      $ref: '#/components/schemas/AppPkgNotification'
+              responses:
+                '204':
+                  $ref: '#/components/responses/204'
+                  
     get:
       tags:
       - 'app-pkgm'