diff --git a/src/openapi/contracts/contracts-crud.yaml b/src/openapi/contracts/contracts-crud.yaml
index e0afa7a..ebf7ac9 100644
--- a/src/openapi/contracts/contracts-crud.yaml
+++ b/src/openapi/contracts/contracts-crud.yaml
@@ -813,13 +813,6 @@ paths:
             example: 65ad5520-4e62-41b7-89dd-a01be6cb78bf
           required: false
           description: OrderLineId of the action to perform.
-        - in: query
-          name: result
-          schema:
-            type: string
-            example: success
-          required: false
-          description: Result of the performed action.
         - in: query
           name: createdFrom
           schema:
@@ -852,6 +845,13 @@ paths:
             example: 2024-07-02 15:01:00.000
           required: false
           description: Find all tasks updated until this timestamp.
+        - in: query
+          name: correlationId
+          schema:
+            type: string
+            example: 65ad5520-4e62-41b7-89dd-a01be6cb78bf
+          required: false
+          description: Pointer to executor of this action (e.g. the batch job).
       responses:
         "200":
           description: OK
@@ -873,10 +873,11 @@ paths:
                         "contractId": "e911532c-8049-4068-955d-6d1230321cba",
                         "orderId": "6c512776-7365-4d29-8ddb-b30e826a2dfb",
                         "orderLineId": "161a3e25-ca15-47b8-b68e-e585cc3ff171",
-                        "details": "xspit|xtat|refundMethod|refundAmount",
-                        "result": "successful call to GBO",
+                        "details": "{ \"xspit\": \"\", \"xtat\": \"\", \"refundMethod\": \"\", \"refundAmount\": \"\" }",
+                        "result": "{ \"result\": \"\", \"timestamp\": \"\" }",
                         "created": "2024-07-02 15:01:00.000",
                         "updated": "2024-07-02 15:01:00.000",
+                        "correlationId": "fb4443c6-5a6a-47a3-adf0-db3dfc183399",
                       },
                     ],
                 }
@@ -900,10 +901,11 @@ paths:
                     "contractId": "e911532c-8049-4068-955d-6d1230321cba",
                     "orderId": "6c512776-7365-4d29-8ddb-b30e826a2dfb",
                     "orderLineId": "161a3e25-ca15-47b8-b68e-e585cc3ff171",
-                    "details": "xspit|xtat|refundMethod|refundAmount",
-                    "result": "successful call to GBO",
+                    "details": "{ \"xspit\": \"\", \"xtat\": \"\", \"refundMethod\": \"\", \"refundAmount\": \"\" }",
+                    "result": "{ \"result\": \"\", \"timestamp\": \"\" }",
                     "created": "2024-07-02 15:01:00.000",
                     "updated": "2024-07-02 15:01:00.000",
+                    "correlationId": "fb4443c6-5a6a-47a3-adf0-db3dfc183399",
                   },
               }
       responses:
@@ -955,10 +957,11 @@ paths:
                       "contractId": "e911532c-8049-4068-955d-6d1230321cba",
                       "orderId": "6c512776-7365-4d29-8ddb-b30e826a2dfb",
                       "orderLineId": "161a3e25-ca15-47b8-b68e-e585cc3ff171",
-                      "details": "xspit|xtat|refundMethod|refundAmount",
-                      "result": "successful call to GBO",
+                      "details": "{ \"xspit\": \"\", \"xtat\": \"\", \"refundMethod\": \"\", \"refundAmount\": \"\" }",
+                      "result": "{ \"result\": \"\", \"timestamp\": \"\" }",
                       "created": "2024-07-02 15:01:00.000",
                       "updated": "2024-07-02 15:01:00.000",
+                      "correlationId": "fb4443c6-5a6a-47a3-adf0-db3dfc183399",
                     },
                 }
     patch:
@@ -977,9 +980,10 @@ paths:
                   {
                     "scheduledActionStatus": 1,
                     "executionTime": "2024-07-02 15:01:00.000",
-                    "details": "xspit|xtat|refundMethod|refundAmount",
-                    "result": "successful call to GBO",
+                    "details": "{ \"xspit\": \"\", \"xtat\": \"\", \"refundMethod\": \"\", \"refundAmount\": \"\" }",
+                    "result": "{ \"result\": \"\", \"timestamp\": \"\" }",
                     "updated": "2024-07-02 15:01:00.000",
+                    "correlationId": "fb4443c6-5a6a-47a3-adf0-db3dfc183399",
                   },
               }
       responses:
@@ -1257,10 +1261,12 @@ components:
           example: 8699d72a-cf4d-4e6b-9e9c-549d837ca51f
         details:
           type: string
-          example: xspit|xtat|refundMethod|refundAmount
+          format: json
+          example: { "xspit": "", "xtat": "", "refundMethod": "", "refundAmount": "" }
         result:
           type: string
-          example: successful call to GBO
+          format: json
+          example: { "result": "", "timestamp": "" }
         created:
           type: string
           format: date-time
@@ -1269,6 +1275,10 @@ components:
           type: string
           format: date-time
           example: 2024-07-02 15:01:00.000
+        correlationId:
+          type: string
+          format: uuid
+          example: 8699d72a-cf4d-4e6b-9e9c-549d837ca51f
     ScheduledActionType:
       type: object
       properties: