SOL003_78: responses description fixed

src/SOL003/VNFLifecycleManagement/VNFLifecycleManagement.yaml

@@ -1971,9 +1971,9 @@ paths:
           description: >
             200 OK
 
-            The state of the VNF lifecycle management operation occurrence was
-            changed successfully. The response shall include a representation
-            of the VNF lifecycle operation occurrence resource.
+            Shall be returned when the state of the VNF lifecycle management operation occurrence
+            has been changed successfully.
+            The response shall include a representation of the "Individual VNF lifecycle operation occurrence" resource.
           headers:
             Content-Type:
               description: The MIME type of the body of the response.
@@ -2003,17 +2003,33 @@ paths:
         403:
           $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
         404:
+          description: >
+            Shall be returned upon the following error: The API producer did not find a current representation
+            for the target resource or is not willing to disclose that one exists.
+            The general cause for this error and its handling is specified in clause 6.4 of ETSI GS NFV-SOL 013,
+            including rules for the presence of the response body.
+            Specifically in case of this task resource, the response code 404 shall also returned if the task
+            is not supported for the VNF LCM operation occurrence represented by the parent resource, which means
+            that the task resource consequently does not exist.
           $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/404"
         405:
-          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/404"
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
         406:
           $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
         409:
-          $ref: "responses/VNFLifecycleManagement_resp.yaml#/responses/409-state-conflict-not-FAILED_TEMP"
+          description: >
+            Shall be returned upon the following error: The operation cannot be executed currently, due to a conflict
+            with the state of the VNF LCM operation occurrence.
+            Typically, this is due to the fact that the VNF LCM operation occurrence is not in FAILED_TEMP state,
+            or another error handling action is starting, such as retry or rollback.
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/409"
         500:
           $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
         503:
           $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
+        504:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/504"
+
   ###############################################################################
   # Cancel operation task                                                       #
   ###############################################################################