diff --git a/src/openforms/formio/formatters/tests/test_kitchensink.py b/src/openforms/formio/formatters/tests/test_kitchensink.py
index 56a2d9df00..82029675b1 100644
--- a/src/openforms/formio/formatters/tests/test_kitchensink.py
+++ b/src/openforms/formio/formatters/tests/test_kitchensink.py
@@ -17,7 +17,7 @@
 
 def _get_printable_data(submission: Submission) -> list[tuple[str, Any]]:
     printable_data: list[tuple[str, Any]] = []
-    merged_data = submission.get_merged_data()
+    merged_data = submission.data
 
     for component in filter_printable(submission.form.iter_components(recursive=True)):
         key = component["key"]
diff --git a/src/openforms/registrations/contrib/camunda/plugin.py b/src/openforms/registrations/contrib/camunda/plugin.py
index 415a9a3608..85b64dbf4c 100644
--- a/src/openforms/registrations/contrib/camunda/plugin.py
+++ b/src/openforms/registrations/contrib/camunda/plugin.py
@@ -48,7 +48,7 @@ def get_process_variables(
         ]
     )
 
-    merged_data: dict[str, Any] = submission.get_merged_data()
+    merged_data = submission.data
     for component in submission.form.iter_components(recursive=True):
         if (key := component.get("key")) not in simple_mappings:
             continue
diff --git a/src/openforms/registrations/contrib/microsoft_graph/plugin.py b/src/openforms/registrations/contrib/microsoft_graph/plugin.py
index a2d4bec28c..48260e326a 100644
--- a/src/openforms/registrations/contrib/microsoft_graph/plugin.py
+++ b/src/openforms/registrations/contrib/microsoft_graph/plugin.py
@@ -64,7 +64,7 @@ def register_submission(self, submission: Submission, options: dict) -> None:
             submission_report.content, folder_name / "report.pdf"
         )
 
-        data = submission.get_merged_data()
+        data = submission.data
         data["__metadata__"] = {"submission_language": submission.language_code}
         uploader.upload_json(data, folder_name / "data.json")
 
diff --git a/src/openforms/submissions/mapping.py b/src/openforms/submissions/mapping.py
index 7d610b8eaf..900ddcdfed 100644
--- a/src/openforms/submissions/mapping.py
+++ b/src/openforms/submissions/mapping.py
@@ -97,7 +97,7 @@ def apply_data_mapping(
             attr_key_lookup[attribute] = key
 
     # grab submitted data
-    data = submission.get_merged_data()
+    data = submission.data
 
     for target_path, conf in mapping_config.items():
         if isinstance(conf, str):
@@ -137,7 +137,7 @@ def get_unmapped_data(
     """
     companion to apply_data_mapping() returns data not mapped to RegistrationAttributes
     """
-    data = submission.get_merged_data()
+    data = submission.data
 
     attr_key_lookup = dict()
 
diff --git a/src/openforms/submissions/models/submission.py b/src/openforms/submissions/models/submission.py
index 76e4b5bea0..83a21b6c28 100644
--- a/src/openforms/submissions/models/submission.py
+++ b/src/openforms/submissions/models/submission.py
@@ -614,7 +614,7 @@ def get_merged_appointment_data(self) -> dict[str, dict[str, str | dict]]:
             "appointments.phoneNumber": "clientPhoneNumber",
         }
 
-        merged_data = self.get_merged_data()
+        merged_data = self.data
         appointment_data = {}
 
         for component in self.form.iter_components(recursive=True):
diff --git a/src/openforms/submissions/tests/form_logic/test_submission_logic.py b/src/openforms/submissions/tests/form_logic/test_submission_logic.py
index 39c5b0f402..567630e5db 100644
--- a/src/openforms/submissions/tests/form_logic/test_submission_logic.py
+++ b/src/openforms/submissions/tests/form_logic/test_submission_logic.py
@@ -424,9 +424,7 @@ def test_response_contains_submission(self):
         self._add_submission_to_session(submission)
 
         with freeze_time("2015-10-10"):
-            response = self.client.post(
-                endpoint, {"data": submission.get_merged_data()}
-            )
+            response = self.client.post(endpoint, {"data": submission.data})
 
         submission_details = response.json()
 
diff --git a/src/openforms/submissions/tests/test_factories.py b/src/openforms/submissions/tests/test_factories.py
index 417b774662..64d39fef33 100644
--- a/src/openforms/submissions/tests/test_factories.py
+++ b/src/openforms/submissions/tests/test_factories.py
@@ -63,7 +63,7 @@ def test_from_components__with_data(self):
             },
         )
 
-        actual = submission.get_merged_data()
+        actual = submission.data
         expected = {"foo": 1, "bar": 2}
         self.assertEqual(actual, expected)
 
@@ -94,7 +94,7 @@ def test_from_data__simple(self):
             }
         )
 
-        actual = submission.get_merged_data()
+        actual = submission.data
         expected = {
             "foo": 1,
             "bar": 2,
@@ -111,7 +111,7 @@ def test_from_data__kwargs(self):
             kvk="111222333",
         )
 
-        actual = submission.get_merged_data()
+        actual = submission.data
         expected = {
             "foo": 1,
             "bar": 2,