diff --git a/src/openforms/registrations/contrib/objects_api/tests/files/vcr_cassettes/ObjectsAPIPaymentStatusUpdateV2Tests/ObjectsAPIPaymentStatusUpdateV2Tests.test_update_payment_status.yaml b/src/openforms/registrations/contrib/objects_api/tests/files/vcr_cassettes/ObjectsAPIPaymentStatusUpdateV2Tests/ObjectsAPIPaymentStatusUpdateV2Tests.test_update_payment_status.yaml
index 865d837e8c..b0bbd0d09e 100644
--- a/src/openforms/registrations/contrib/objects_api/tests/files/vcr_cassettes/ObjectsAPIPaymentStatusUpdateV2Tests/ObjectsAPIPaymentStatusUpdateV2Tests.test_update_payment_status.yaml
+++ b/src/openforms/registrations/contrib/objects_api/tests/files/vcr_cassettes/ObjectsAPIPaymentStatusUpdateV2Tests/ObjectsAPIPaymentStatusUpdateV2Tests.test_update_payment_status.yaml
@@ -3,8 +3,9 @@ interactions:
     body: '{"type": "http://objecttypes-web:8000/api/v2/objecttypes/8e46e0a5-b1b4-449b-b9e9-fa3cea655f48",
       "record": {"typeVersion": 3, "data": {"age": 20, "name": {"last.name": "My last
       name"}, "submission_pdf_url": "http://example.com", "submission_csv_url": "http://example.com",
-      "submission_payment_completed": false, "submission_payment_amount": "0", "submission_payment_public_ids":
-      [], "submission_date": "2020-02-02T00:00:00+00:00"}, "startAt": "2020-02-02"}}'
+      "submission_payment_completed": false, "nested": {"unrelated": "some_value",
+      "submission_payment_amount": 0}, "submission_payment_public_ids": [], "submission_date":
+      "2020-02-02T00:00:00+00:00"}, "startAt": "2020-02-02"}}'
     headers:
       Accept:
       - '*/*'
@@ -17,7 +18,7 @@ interactions:
       Content-Crs:
       - EPSG:4326
       Content-Length:
-      - '456'
+      - '493'
       Content-Type:
       - application/json
       User-Agent:
@@ -26,21 +27,21 @@ interactions:
     uri: http://localhost:8002/api/v2/objects
   response:
     body:
-      string: '{"url":"http://localhost:8002/api/v2/objects/2c287cd4-7737-473d-84de-8b0a018a46bb","uuid":"2c287cd4-7737-473d-84de-8b0a018a46bb","type":"http://objecttypes-web:8000/api/v2/objecttypes/8e46e0a5-b1b4-449b-b9e9-fa3cea655f48","record":{"index":1,"typeVersion":3,"data":{"age":20,"name":{"last.name":"My
-        last name"},"submission_pdf_url":"http://example.com","submission_csv_url":"http://example.com","submission_payment_completed":false,"submission_payment_amount":"0","submission_payment_public_ids":[],"submission_date":"2020-02-02T00:00:00+00:00"},"geometry":null,"startAt":"2020-02-02","endAt":null,"registrationAt":"2024-03-19","correctionFor":null,"correctedBy":null}}'
+      string: '{"url":"http://localhost:8002/api/v2/objects/302d84d5-b428-4e6b-8fb5-9127a893fd5e","uuid":"302d84d5-b428-4e6b-8fb5-9127a893fd5e","type":"http://objecttypes-web:8000/api/v2/objecttypes/8e46e0a5-b1b4-449b-b9e9-fa3cea655f48","record":{"index":1,"typeVersion":3,"data":{"age":20,"name":{"last.name":"My
+        last name"},"submission_pdf_url":"http://example.com","submission_csv_url":"http://example.com","submission_payment_completed":false,"nested":{"unrelated":"some_value","submission_payment_amount":0},"submission_payment_public_ids":[],"submission_date":"2020-02-02T00:00:00+00:00"},"geometry":null,"startAt":"2020-02-02","endAt":null,"registrationAt":"2024-03-22","correctionFor":null,"correctedBy":null}}'
     headers:
       Allow:
       - GET, POST, HEAD, OPTIONS
       Content-Crs:
       - EPSG:4326
       Content-Length:
-      - '669'
+      - '703'
       Content-Type:
       - application/json
       Cross-Origin-Opener-Policy:
       - same-origin
       Location:
-      - http://localhost:8002/api/v2/objects/2c287cd4-7737-473d-84de-8b0a018a46bb
+      - http://localhost:8002/api/v2/objects/302d84d5-b428-4e6b-8fb5-9127a893fd5e
       Referrer-Policy:
       - same-origin
       X-Content-Type-Options:
@@ -52,11 +53,9 @@ interactions:
       message: Created
 - request:
     body: '{"type": "http://objecttypes-web:8000/api/v2/objecttypes/8e46e0a5-b1b4-449b-b9e9-fa3cea655f48",
-      "record": {"typeVersion": 3, "data": {"age": 20, "name": {"last.name": "My last
-      name"}, "submission_date": "2020-02-02T00:00:00+00:00", "submission_pdf_url":
-      "", "submission_csv_url": "", "submission_payment_completed": true, "submission_payment_amount":
-      "10.01", "submission_payment_public_ids": ["TEST-123"]}, "startAt": "2020-02-02",
-      "geometry": {"type": "Point", "coordinates": [52.36673378967122, 4.893164274470299]}}}'
+      "record": {"typeVersion": 3, "data": {"submission_payment_completed": true,
+      "nested": {"submission_payment_amount": 10.01}, "submission_payment_public_ids":
+      ["TEST-123"]}, "startAt": "2020-02-02"}}'
     headers:
       Accept:
       - '*/*'
@@ -69,24 +68,24 @@ interactions:
       Content-Crs:
       - EPSG:4326
       Content-Length:
-      - '519'
+      - '293'
       Content-Type:
       - application/json
       User-Agent:
       - python-requests/2.31.0
-    method: PUT
-    uri: http://localhost:8002/api/v2/objects/2c287cd4-7737-473d-84de-8b0a018a46bb
+    method: PATCH
+    uri: http://localhost:8002/api/v2/objects/302d84d5-b428-4e6b-8fb5-9127a893fd5e
   response:
     body:
-      string: '{"url":"http://localhost:8002/api/v2/objects/2c287cd4-7737-473d-84de-8b0a018a46bb","uuid":"2c287cd4-7737-473d-84de-8b0a018a46bb","type":"http://objecttypes-web:8000/api/v2/objecttypes/8e46e0a5-b1b4-449b-b9e9-fa3cea655f48","record":{"index":2,"typeVersion":3,"data":{"age":20,"name":{"last.name":"My
-        last name"},"submission_date":"2020-02-02T00:00:00+00:00","submission_pdf_url":"","submission_csv_url":"","submission_payment_completed":true,"submission_payment_amount":"10.01","submission_payment_public_ids":["TEST-123"]},"geometry":{"type":"Point","coordinates":[52.36673378967122,4.893164274470299]},"startAt":"2020-02-02","endAt":null,"registrationAt":"2024-03-19","correctionFor":null,"correctedBy":null}}'
+      string: '{"url":"http://localhost:8002/api/v2/objects/302d84d5-b428-4e6b-8fb5-9127a893fd5e","uuid":"302d84d5-b428-4e6b-8fb5-9127a893fd5e","type":"http://objecttypes-web:8000/api/v2/objecttypes/8e46e0a5-b1b4-449b-b9e9-fa3cea655f48","record":{"index":2,"typeVersion":3,"data":{"age":20,"name":{"last.name":"My
+        last name"},"nested":{"unrelated":"some_value","submission_payment_amount":10.01},"submission_date":"2020-02-02T00:00:00+00:00","submission_csv_url":"http://example.com","submission_pdf_url":"http://example.com","submission_payment_completed":true,"submission_payment_public_ids":["TEST-123"]},"geometry":null,"startAt":"2020-02-02","endAt":null,"registrationAt":"2024-03-22","correctionFor":null,"correctedBy":null}}'
     headers:
       Allow:
       - GET, PUT, PATCH, DELETE, HEAD, OPTIONS
       Content-Crs:
       - EPSG:4326
       Content-Length:
-      - '710'
+      - '716'
       Content-Type:
       - application/json
       Cross-Origin-Opener-Policy:
diff --git a/src/openforms/registrations/contrib/objects_api/tests/test_update_payment_status_v2.py b/src/openforms/registrations/contrib/objects_api/tests/test_update_payment_status_v2.py
index fded17a157..c18303064f 100644
--- a/src/openforms/registrations/contrib/objects_api/tests/test_update_payment_status_v2.py
+++ b/src/openforms/registrations/contrib/objects_api/tests/test_update_payment_status_v2.py
@@ -61,7 +61,10 @@ def test_update_payment_status(self):
                         "submission_pdf_url": "http://example.com",
                         "submission_csv_url": "http://example.com",
                         "submission_payment_completed": False,
-                        "submission_payment_amount": "0",
+                        "nested": {
+                            "unrelated": "some_value",
+                            "submission_payment_amount": 0,
+                        },
                         "submission_payment_public_ids": [],
                         "submission_date": timezone.now().isoformat(),
                     },
@@ -137,7 +140,7 @@ def test_update_payment_status(self):
                 },
                 {
                     "variable_key": "payment_amount",
-                    "target_path": ["submission_payment_amount"],
+                    "target_path": ["nested", "submission_payment_amount"],
                 },
                 {
                     "variable_key": "payment_public_order_ids",
@@ -164,5 +167,11 @@ def test_update_payment_status(self):
         result_data = result["record"]["data"]
 
         self.assertTrue(result_data["submission_payment_completed"])
-        self.assertEqual(result_data["submission_payment_amount"], "10.01")
+        self.assertEqual(
+            result_data["nested"],
+            {
+                "unrelated": "some_value",
+                "submission_payment_amount": 10.01,
+            },
+        )
         self.assertEqual(result_data["submission_payment_public_ids"], ["TEST-123"])