diff --git a/frontend/packages/shared/src/api/mutations.ts b/frontend/packages/shared/src/api/mutations.ts
index 83ceff78552..aaafd1ab96e 100644
--- a/frontend/packages/shared/src/api/mutations.ts
+++ b/frontend/packages/shared/src/api/mutations.ts
@@ -45,7 +45,6 @@ import type { ApplicationAttachmentMetadata } from 'app-shared/types/Application
 import type { CreateDeploymentPayload } from 'app-shared/types/api/CreateDeploymentPayload';
 import type { CreateReleasePayload } from 'app-shared/types/api/CreateReleasePayload';
 import type { CreateRepoCommitPayload } from 'app-shared/types/api/CreateRepoCommitPayload';
-import type { ExternalFormLayoutV3 } from 'app-shared/types/api/FormLayoutsResponseV3';
 import type { LayoutSetPayload } from 'app-shared/types/api/LayoutSetsResponse';
 import type { ILayoutSettings, ITextResourcesObjectFormat } from 'app-shared/types/global';
 import type { RuleConfig } from 'app-shared/types/RuleConfig';
@@ -95,7 +94,7 @@ export const pushRepoChanges = (org: string, app: string) => post(repoPushPath(o
 export const resetRepoChanges = (org: string, app: string) => get(repoResetPath(org, app)); //Technically a mutation, but currently only implemented as a GET
 export const saveDataModel = (org: string, app: string, modelPath: string, payload: JsonSchema) => put<void, JsonSchema>(dataModelPath(org, app, modelPath, true), payload);
 export const saveFormLayout = (org: string, app: string, layoutName: string, layoutSetName: string, payload: FormLayoutRequest) => post<void, FormLayoutRequest>(formLayoutPath(org, app, layoutName, layoutSetName), payload);
-export const saveFormLayoutV3 = (org: string, app: string, layoutName: string, layoutSetName: string, payload: ExternalFormLayoutV3) => post<void, ExternalFormLayoutV3>(formLayoutPath(org, app, layoutName, layoutSetName), payload);
+export const saveFormLayoutV3 = (org: string, app: string, layoutName: string, layoutSetName: string, payload: FormLayoutRequest) => post<void, FormLayoutRequest>(formLayoutPath(org, app, layoutName, layoutSetName), payload);
 export const saveFormLayoutSettings = (org: string, app: string, layoutSetName: string, payload: ILayoutSettings) => post<ILayoutSettings>(layoutSettingsPath(org, app, layoutSetName), payload);
 export const saveRuleConfig = (org: string, app: string, layoutSetName: string, payload: RuleConfig) => post<RuleConfig>(ruleConfigPath(org, app, layoutSetName), payload);
 export const setStarredRepo = (org: string, app: string) => put(userStarredRepoPath(org, app), {});
diff --git a/frontend/packages/ux-editor-v3/src/hooks/mutations/useAddLayoutMutation.test.ts b/frontend/packages/ux-editor-v3/src/hooks/mutations/useAddLayoutMutation.test.ts
index b3b6fe5ff98..6f5e5a90d91 100644
--- a/frontend/packages/ux-editor-v3/src/hooks/mutations/useAddLayoutMutation.test.ts
+++ b/frontend/packages/ux-editor-v3/src/hooks/mutations/useAddLayoutMutation.test.ts
@@ -37,10 +37,12 @@ describe('useAddLayoutMutation', () => {
       layoutName,
       selectedLayoutSet,
       {
-        $schema: 'https://altinncdn.no/schemas/json/layout/layout.schema.v1.json',
-        data: {
-          layout: [expect.objectContaining({ type: ComponentTypeV3.NavigationButtons })],
-          hidden: undefined,
+        layout: {
+          $schema: 'https://altinncdn.no/schemas/json/layout/layout.schema.v1.json',
+          data: {
+            layout: [expect.objectContaining({ type: ComponentTypeV3.NavigationButtons })],
+            hidden: undefined,
+          },
         },
       },
     );
@@ -66,10 +68,12 @@ describe('useAddLayoutMutation', () => {
       formLayoutSettingsMock.receiptLayoutName,
       selectedLayoutSet,
       {
-        $schema: 'https://altinncdn.no/schemas/json/layout/layout.schema.v1.json',
-        data: {
-          layout: [],
-          hidden: undefined,
+        layout: {
+          $schema: 'https://altinncdn.no/schemas/json/layout/layout.schema.v1.json',
+          data: {
+            layout: [],
+            hidden: undefined,
+          },
         },
       },
     );
diff --git a/frontend/packages/ux-editor-v3/src/hooks/mutations/useAddLayoutMutation.ts b/frontend/packages/ux-editor-v3/src/hooks/mutations/useAddLayoutMutation.ts
index 468df272459..192c9f75e4f 100644
--- a/frontend/packages/ux-editor-v3/src/hooks/mutations/useAddLayoutMutation.ts
+++ b/frontend/packages/ux-editor-v3/src/hooks/mutations/useAddLayoutMutation.ts
@@ -13,6 +13,7 @@ import { useFormLayoutSettingsQuery } from '../queries/useFormLayoutSettingsQuer
 import type { ILayoutSettings } from 'app-shared/types/global';
 import { addOrRemoveNavigationButtons } from '../../utils/formLayoutsUtils';
 import { internalLayoutToExternal } from '../../converters/formLayoutConverters';
+import { type FormLayoutRequest } from 'app-shared/types/api/FormLayoutRequest';
 
 export interface AddLayoutMutationArgs {
   layoutName: string;
@@ -29,7 +30,9 @@ export const useAddLayoutMutation = (org: string, app: string, layoutSetName: st
 
   const save = async (updatedLayoutName: string, updatedLayout: IInternalLayout) => {
     const convertedLayout: ExternalFormLayoutV3 = internalLayoutToExternal(updatedLayout);
-    return await saveFormLayoutV3(org, app, updatedLayoutName, layoutSetName, convertedLayout);
+    return await saveFormLayoutV3(org, app, updatedLayoutName, layoutSetName, {
+      layout: convertedLayout,
+    } as unknown as FormLayoutRequest);
   };
 
   return useMutation({
diff --git a/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteFormComponentMutation.test.ts b/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteFormComponentMutation.test.ts
index ee0d1c1994d..221a3adbdb8 100644
--- a/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteFormComponentMutation.test.ts
+++ b/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteFormComponentMutation.test.ts
@@ -21,8 +21,10 @@ describe('useDeleteFormComponentMutation', () => {
       layout1NameMock,
       selectedLayoutSet,
       expect.objectContaining({
-        data: expect.objectContaining({
-          layout: expect.not.arrayContaining([expect.objectContaining({ id: component2IdMock })]),
+        layout: expect.objectContaining({
+          data: expect.objectContaining({
+            layout: expect.not.arrayContaining([expect.objectContaining({ id: component2IdMock })]),
+          }),
         }),
       }),
     );
diff --git a/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteFormContainerMutation.test.ts b/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteFormContainerMutation.test.ts
index a3ca0dc4ae0..26a96f27f93 100644
--- a/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteFormContainerMutation.test.ts
+++ b/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteFormContainerMutation.test.ts
@@ -27,8 +27,10 @@ describe('useDeleteFormContainerMutation', () => {
       layout1NameMock,
       selectedLayoutSet,
       expect.objectContaining({
-        data: expect.objectContaining({
-          layout: expect.not.arrayContaining([expect.objectContaining({ id })]),
+        layout: expect.objectContaining({
+          data: expect.objectContaining({
+            layout: expect.not.arrayContaining([expect.objectContaining({ id })]),
+          }),
         }),
       }),
     );
diff --git a/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteLayoutMutation.ts b/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteLayoutMutation.ts
index 649d5588b68..74c3cc0651d 100644
--- a/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteLayoutMutation.ts
+++ b/frontend/packages/ux-editor-v3/src/hooks/mutations/useDeleteLayoutMutation.ts
@@ -15,6 +15,7 @@ import { useAddLayoutMutation } from './useAddLayoutMutation';
 import { useText } from '../useText';
 import { selectedLayoutNameSelector } from '../../selectors/formLayoutSelectors';
 import { internalLayoutToExternal } from '../../converters/formLayoutConverters';
+import { type FormLayoutRequest } from 'app-shared/types/api/FormLayoutRequest';
 
 export const useDeleteLayoutMutation = (org: string, app: string, layoutSetName: string) => {
   const { deleteFormLayout, saveFormLayoutV3 } = useServicesContext();
@@ -31,7 +32,9 @@ export const useDeleteLayoutMutation = (org: string, app: string, layoutSetName:
 
   const saveLayout = async (updatedLayoutName: string, updatedLayout: IInternalLayout) => {
     const convertedLayout: ExternalFormLayoutV3 = internalLayoutToExternal(updatedLayout);
-    return await saveFormLayoutV3(org, app, updatedLayoutName, layoutSetName, convertedLayout);
+    return await saveFormLayoutV3(org, app, updatedLayoutName, layoutSetName, {
+      layout: convertedLayout,
+    } as unknown as FormLayoutRequest);
   };
 
   return useMutation({
diff --git a/frontend/packages/ux-editor-v3/src/hooks/mutations/useFormLayoutMutation.test.tsx b/frontend/packages/ux-editor-v3/src/hooks/mutations/useFormLayoutMutation.test.tsx
index a46f0eca0ab..7409af864e4 100644
--- a/frontend/packages/ux-editor-v3/src/hooks/mutations/useFormLayoutMutation.test.tsx
+++ b/frontend/packages/ux-editor-v3/src/hooks/mutations/useFormLayoutMutation.test.tsx
@@ -62,20 +62,22 @@ describe('useFormLayoutMutation', () => {
       layoutName,
       selectedLayoutSet,
       expect.objectContaining({
-        data: {
-          layout: [
-            {
-              id: containerId,
-              type: ComponentTypeV3.Group,
-              children: [componentId],
-            },
-            {
-              id: componentId,
-              type: componentType,
-              dataModelBindings: {},
-            },
-          ],
-        },
+        layout: expect.objectContaining({
+          data: {
+            layout: [
+              {
+                id: containerId,
+                type: ComponentTypeV3.Group,
+                children: [componentId],
+              },
+              {
+                id: componentId,
+                type: componentType,
+                dataModelBindings: {},
+              },
+            ],
+          },
+        }),
       }),
     );
   });
diff --git a/frontend/packages/ux-editor-v3/src/hooks/mutations/useFormLayoutMutation.ts b/frontend/packages/ux-editor-v3/src/hooks/mutations/useFormLayoutMutation.ts
index fce1cdac5b5..752df2a33f7 100644
--- a/frontend/packages/ux-editor-v3/src/hooks/mutations/useFormLayoutMutation.ts
+++ b/frontend/packages/ux-editor-v3/src/hooks/mutations/useFormLayoutMutation.ts
@@ -6,6 +6,7 @@ import { usePreviewConnection } from 'app-shared/providers/PreviewConnectionCont
 import type { ExternalFormLayoutV3 } from 'app-shared/types/api/FormLayoutsResponseV3';
 import { useAppContext } from '../useAppContext';
 import { internalLayoutToExternal } from '../../converters/formLayoutConverters';
+import type { FormLayoutRequest } from 'app-shared/types/api/FormLayoutRequest';
 
 export const useFormLayoutMutation = (
   org: string,
@@ -21,7 +22,12 @@ export const useFormLayoutMutation = (
   return useMutation({
     mutationFn: (layout: IInternalLayout) => {
       const convertedLayout: ExternalFormLayoutV3 = internalLayoutToExternal(layout);
-      return saveFormLayoutV3(org, app, layoutName, layoutSetName, convertedLayout).then(
+
+      const requestPayload = {
+        layout: convertedLayout,
+      } as unknown as FormLayoutRequest;
+
+      return saveFormLayoutV3(org, app, layoutName, layoutSetName, requestPayload).then(
         () => layout,
       );
     },
diff --git a/frontend/packages/ux-editor-v3/src/hooks/mutations/useUpdateFormComponentMutation.test.ts b/frontend/packages/ux-editor-v3/src/hooks/mutations/useUpdateFormComponentMutation.test.ts
index 5008630b419..969c30b15f8 100644
--- a/frontend/packages/ux-editor-v3/src/hooks/mutations/useUpdateFormComponentMutation.test.ts
+++ b/frontend/packages/ux-editor-v3/src/hooks/mutations/useUpdateFormComponentMutation.test.ts
@@ -55,14 +55,16 @@ describe('useUpdateFormComponentMutation', () => {
       layout1NameMock,
       selectedLayoutSet,
       expect.objectContaining({
-        data: expect.objectContaining({
-          layout: expect.arrayContaining([
-            {
-              id,
-              type,
-              dataModelBindings,
-            },
-          ]),
+        layout: expect.objectContaining({
+          data: expect.objectContaining({
+            layout: expect.arrayContaining([
+              {
+                id,
+                type,
+                dataModelBindings,
+              },
+            ]),
+          }),
         }),
       }),
     );
@@ -128,15 +130,17 @@ describe('useUpdateFormComponentMutation', () => {
           layout1NameMock,
           selectedLayoutSet,
           expect.objectContaining({
-            data: expect.objectContaining({
-              layout: expect.arrayContaining([
-                {
-                  id,
-                  type: componentType,
-                  dataModelBindings,
-                  ...optionsProp,
-                },
-              ]),
+            layout: expect.objectContaining({
+              data: expect.objectContaining({
+                layout: expect.arrayContaining([
+                  {
+                    id,
+                    type: componentType,
+                    dataModelBindings,
+                    ...optionsProp,
+                  },
+                ]),
+              }),
             }),
           }),
         );
diff --git a/frontend/packages/ux-editor-v3/src/hooks/mutations/useUpdateFormContainerMutation.test.ts b/frontend/packages/ux-editor-v3/src/hooks/mutations/useUpdateFormContainerMutation.test.ts
index 2fc65272eb2..6e7416002e9 100644
--- a/frontend/packages/ux-editor-v3/src/hooks/mutations/useUpdateFormContainerMutation.test.ts
+++ b/frontend/packages/ux-editor-v3/src/hooks/mutations/useUpdateFormContainerMutation.test.ts
@@ -49,14 +49,16 @@ describe('useUpdateFormContainerMutation', () => {
       layout1NameMock,
       selectedLayoutSet,
       expect.objectContaining({
-        data: expect.objectContaining({
-          layout: expect.arrayContaining([
-            {
-              ...layout1Mock.data.layout[0],
-              id: updatedContainer.id,
-              maxCount,
-            },
-          ]),
+        layout: expect.objectContaining({
+          data: expect.objectContaining({
+            layout: expect.arrayContaining([
+              {
+                ...layout1Mock.data.layout[0],
+                id: updatedContainer.id,
+                maxCount,
+              },
+            ]),
+          }),
         }),
       }),
     );