diff --git a/OpenAPI/TS28532_ProvMnS.yaml b/OpenAPI/TS28532_ProvMnS.yaml
index 7b734bc79ca39b96d1c8f5444e7f15ed3b7bb7fa..3bdb9fec58a1ccff58cb91ec1c48a1513643ab94 100755
--- a/OpenAPI/TS28532_ProvMnS.yaml
+++ b/OpenAPI/TS28532_ProvMnS.yaml
@@ -147,6 +147,27 @@ paths:
                     application/json:
                       schema:
                         $ref: 'TS28623_ComDefs.yaml#/components/schemas/ErrorResponse'
+        notifyEvent:
+          '{request.body#/notificationRecipientAddress}':
+            post:
+              requestBody:
+                required: true
+                content:
+                  application/json:
+                    schema:
+                      $ref: '#/components/schemas/NotifyEvent'
+              responses:
+                '204':
+                  description: >-
+                    Success case ("204 No Content").
+                    The notification is successfully delivered. The response
+                    has no message body.
+                default:
+                  description: Error case.
+                  content:
+                    application/json:
+                      schema:
+                        $ref: 'TS28623_ComDefs.yaml#/components/schemas/ErrorResponse'
         notifyMOIChanges:
           '{request.body#/notificationRecipientAddress}':
             post:
@@ -333,6 +354,7 @@ components:
         - notifyMOICreation
         - notifyMOIDeletion
         - notifyMOIAttributeValueChanges
+        - notifyEvent
         - notifyMOIChanges
     SourceIndicator:
       type: string
@@ -488,6 +510,19 @@ components:
               $ref: 'TS28623_ComDefs.yaml#/components/schemas/AttributeValueChangeSet'
           required:
             - attributeListValueChanges
+    NotifyEvent:
+      allOf:
+        - $ref: 'TS28623_ComDefs.yaml#/components/schemas/NotificationHeader'
+        - type: object
+          required:
+            - specificProblem
+          properties:
+            specificProblem:
+              $ref: 'TS28532_FaultMnS.yaml#/components/schemas/SpecificProblem'
+            additionalText:
+              type: string
+            additionalInformation:
+              $ref: 'TS28623_ComDefs.yaml#/components/schemas/AttributeNameValuePairSet'
     NotifyMoiChanges:
       allOf:
         - $ref: 'TS28623_ComDefs.yaml#/components/schemas/NotificationHeader'