diff --git a/src/SOL003/VNFPackageManagementNotification/definitions/VNFPackageManagementNotification_def.yaml b/src/SOL003/VNFPackageManagementNotification/definitions/VNFPackageManagementNotification_def.yaml
index 82c06cea3614b1a575eb731c1792f5cfb3c34e8c..99862dd53016e104085eb3460474eaf40f302738 100644
--- a/src/SOL003/VNFPackageManagementNotification/definitions/VNFPackageManagementNotification_def.yaml
+++ b/src/SOL003/VNFPackageManagementNotification/definitions/VNFPackageManagementNotification_def.yaml
@@ -41,6 +41,7 @@ definitions:
     required: 
       - id
       - notificationType
+      - subscriptionId
       - timeStamp
       - vnfPkgId
       - vnfdId
@@ -70,8 +71,7 @@ definitions:
         $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/DateTime"
       vnfPkgId:
         description: >
-          Identifier of the on-boarded VNF package. This identifier is
-          allocated by the NFVO.
+          Identifier of the VNF package. This identifier is allocated by the NFVO.
           Its value is the same as the value of the "id" attribute of the
           related "Individual VNF package" resource.
         $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
@@ -137,8 +137,7 @@ definitions:
         $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/DateTime"
       vnfPkgId:
         description: >
-          Identifier of the VNF package. This identifier is
-          allocated by the NFVO.
+          Identifier of the VNF package. This identifier is allocated by the NFVO.
           Its value is the same as the value of the "id" attribute of the
           related "Individual VNF package" resource.
         $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"