diff --git a/src/SOL003/VNFPackageManagementNotification/definitions/VNFPackageManagementNotification_def.yaml b/src/SOL003/VNFPackageManagementNotification/definitions/VNFPackageManagementNotification_def.yaml
index 8a7b061ed3f1740ae53f35203491d3f34ad19136..82c06cea3614b1a575eb731c1792f5cfb3c34e8c 100644
--- a/src/SOL003/VNFPackageManagementNotification/definitions/VNFPackageManagementNotification_def.yaml
+++ b/src/SOL003/VNFPackageManagementNotification/definitions/VNFPackageManagementNotification_def.yaml
@@ -107,6 +107,7 @@ definitions:
     required: 
       - id
       - notificationType
+      - subscriptionId
       - timeStamp
       - vnfPkgId
       - vnfdId
@@ -136,7 +137,7 @@ definitions:
         $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/DateTime"
       vnfPkgId:
         description: >
-          Identifier of the on-boarded VNF package. This identifier is
+          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.