diff --git a/OpenAPI/TS28623_ComDefs.yaml b/OpenAPI/TS28623_ComDefs.yaml
index d80f95b9138e30af1da950f825d09c65a899aa17..b88602da414f8f6de1b9cfab65933f92fa3299dd 100755
--- a/OpenAPI/TS28623_ComDefs.yaml
+++ b/OpenAPI/TS28623_ComDefs.yaml
@@ -409,6 +409,10 @@ components:
           $ref: '#/components/schemas/DateTime'
         systemDN:
           $ref: '#/components/schemas/SystemDN'
+        sequenceNo:
+          type: integer
+        subscriptionId:
+          type: string
       required:
         - href
         - notificationId