diff --git a/src/openforms/js/components/admin/form_design/registrations/objectsapi/ObjectsApiOptionsFormFields.js b/src/openforms/js/components/admin/form_design/registrations/objectsapi/ObjectsApiOptionsFormFields.js
index 96b3d2af7e..c412888a0e 100644
--- a/src/openforms/js/components/admin/form_design/registrations/objectsapi/ObjectsApiOptionsFormFields.js
+++ b/src/openforms/js/components/admin/form_design/registrations/objectsapi/ObjectsApiOptionsFormFields.js
@@ -47,6 +47,7 @@ const ObjectsApiOptionsFormFields = ({index, name, schema, formData, onChange})
         } else {
           delete draft.variablesMapping;
         }
+        delete draft.productaanvraagType;
         delete draft.contentJson;
         delete draft.paymentStatusUpdateJson;
       })
diff --git a/src/openforms/js/components/admin/form_design/registrations/objectsapi/V2ConfigFields.js b/src/openforms/js/components/admin/form_design/registrations/objectsapi/V2ConfigFields.js
index 6e328456a8..e60b89746d 100644
--- a/src/openforms/js/components/admin/form_design/registrations/objectsapi/V2ConfigFields.js
+++ b/src/openforms/js/components/admin/form_design/registrations/objectsapi/V2ConfigFields.js
@@ -23,7 +23,6 @@ const V2ConfigFields = ({index, name, formData, onChange}) => {
   const {
     objecttype = '',
     objecttypeVersion = '',
-    productaanvraagType = '',
     informatieobjecttypeSubmissionReport = '',
     uploadSubmissionCsv = '',
     informatieobjecttypeSubmissionCsv = '',
@@ -94,27 +93,6 @@ const V2ConfigFields = ({index, name, formData, onChange}) => {
           onChange={onChange}
         />
       </CustomFieldTemplate>
-      <CustomFieldTemplate
-        id="root_productaanvraagType"
-        label={intl.formatMessage({
-          defaultMessage: 'Productaanvraag type',
-          description: 'Objects API registration options "Productaanvraag type" label',
-        })}
-        rawDescription={intl.formatMessage({
-          defaultMessage: 'The type of ProductAanvraag',
-          description: 'Objects API registration options "Productaanvraag type" description',
-        })}
-        rawErrors={getFieldErrors(name, index, validationErrors, 'productaanvraagType')}
-        errors={buildErrorsComponent('productaanvraagType')}
-        displayLabel
-      >
-        <TextInput
-          id="root_productaanvraagType"
-          name="productaanvraagType"
-          value={productaanvraagType}
-          onChange={onChange}
-        />
-      </CustomFieldTemplate>
       <CustomFieldTemplate
         id="root_informatieobjecttypeSubmissionReport"
         label={intl.formatMessage({
@@ -250,7 +228,6 @@ V2ConfigFields.propTypes = {
     version: PropTypes.number,
     objecttype: PropTypes.string,
     objecttypeVersion: PropTypes.string,
-    productaanvraagType: PropTypes.string,
     informatieobjecttypeSubmissionReport: PropTypes.string,
     uploadSubmissionCsv: PropTypes.string,
     informatieobjecttypeSubmissionCsv: PropTypes.string,
diff --git a/src/openforms/registrations/contrib/objects_api/config.py b/src/openforms/registrations/contrib/objects_api/config.py
index 3419bb7768..7a92270dba 100644
--- a/src/openforms/registrations/contrib/objects_api/config.py
+++ b/src/openforms/registrations/contrib/objects_api/config.py
@@ -72,11 +72,6 @@ class ObjectsAPIOptionsSerializer(JsonSchemaSerializerMixin, serializers.Seriali
         label=_("objecttype version"),
         help_text=_("Version of the objecttype in the Objecttypes API"),
     )
-    productaanvraag_type = serializers.CharField(
-        label=_("productaanvraag type"),
-        help_text=_("The type of ProductAanvraag"),
-        required=False,
-    )
     informatieobjecttype_submission_report = serializers.URLField(
         label=_("submission report PDF informatieobjecttype"),
         help_text=_(
@@ -117,6 +112,11 @@ class ObjectsAPIOptionsSerializer(JsonSchemaSerializerMixin, serializers.Seriali
     )
 
     # V1 only fields:
+    productaanvraag_type = serializers.CharField(
+        label=_("productaanvraag type"),
+        help_text=_("The type of ProductAanvraag"),
+        required=False,
+    )
     content_json = serializers.CharField(
         label=_("JSON content field"),
         help_text=_(
@@ -161,7 +161,11 @@ class ObjectsAPIOptionsSerializer(JsonSchemaSerializerMixin, serializers.Seriali
     )
 
     def validate(self, attrs: dict[str, Any]) -> dict[str, Any]:
-        v1_only_fields = {"content_json", "payment_status_update_json"}
+        v1_only_fields = {
+            "productaanvraag_type",
+            "content_json",
+            "payment_status_update_json",
+        }
         v2_only_fields = {"variables_mapping", "geometry_variable_key"}
 
         version = get_from_serializer_data_or_instance("version", attrs, self)
diff --git a/src/openforms/registrations/contrib/objects_api/typing.py b/src/openforms/registrations/contrib/objects_api/typing.py
index 2182d613fb..fe3ae7c861 100644
--- a/src/openforms/registrations/contrib/objects_api/typing.py
+++ b/src/openforms/registrations/contrib/objects_api/typing.py
@@ -8,7 +8,6 @@
 class _BaseRegistrationOptions(TypedDict, total=False):
     objecttype: Required[str]
     objecttype_version: Required[int]
-    productaanvraag_type: str
     informatieobjecttype_submission_report: str
     upload_submission_csv: bool
     informatieobjecttype_submission_csv: str
@@ -18,6 +17,7 @@ class _BaseRegistrationOptions(TypedDict, total=False):
 
 class RegistrationOptionsV1(_BaseRegistrationOptions, total=False):
     version: Required[Literal[1]]
+    productaanvraag_type: str
     content_json: str
     payment_status_update_json: str