diff --git a/ROADMAP_CONSOLE.md b/ROADMAP_CONSOLE.md
index 186bc5779a..40177a19a5 100644
--- a/ROADMAP_CONSOLE.md
+++ b/ROADMAP_CONSOLE.md
@@ -1103,7 +1103,7 @@ These were the initial tasks to bring the console prototype to production-qualit
 
 2027 Q1+ — v2.1: INLINE VIEW DESIGNER (✅ Complete)
 ═══════════════════════════════════════════════════════════
-  Phase 20: Inline ViewConfigPanel    ██████████████  ✅ Complete: Airtable-style right sidebar, full interactive editing (Switch toggles, inline title, ViewType select, sub-editor rows, draft Save/Discard), ARIA accessibility
+  Phase 20: Inline ViewConfigPanel    ██████████████  ✅ Complete: Airtable-style right sidebar, full interactive editing (Switch toggles, inline title, ViewType select, sub-editor rows, draft Save/Discard), ARIA accessibility, backend persistence via DataSource.updateViewConfig
 ```
 
 ### Milestone Summary
@@ -1118,7 +1118,7 @@ These were the initial tasks to bring the console prototype to production-qualit
 | **v1.1** | v1.1.0 | ✅ Complete | Kanban + Forms + Import/Export (Phases 13-15); all L1 ✅ |
 | **v1.2** | v1.2.0 | ✅ L1 Complete | Undo/Redo + Collaboration (Phases 16-17); L1 integrated into console |
 | **v2.0** | v2.0.0 | ✅ L2 Complete | All L2 features: batch undo, expression formatting, conditional triggers, multi-step actions, swimlane persistence, keyboard nav, file validation, thread resolution, notification prefs |
-| **v2.1** | v2.1.0 | ✅ Complete | Inline ViewConfigPanel (Phase 20): Airtable-style right sidebar with full interactive editing support |
+| **v2.1** | v2.1.0 | ✅ Complete | Inline ViewConfigPanel (Phase 20): Airtable-style right sidebar with full interactive editing support, backend persistence via DataSource.updateViewConfig |
 
 ---
 
diff --git a/apps/console/src/__tests__/ObjectView.test.tsx b/apps/console/src/__tests__/ObjectView.test.tsx
index 15d93ce074..1fbe334870 100644
--- a/apps/console/src/__tests__/ObjectView.test.tsx
+++ b/apps/console/src/__tests__/ObjectView.test.tsx
@@ -24,8 +24,16 @@ vi.mock('@object-ui/components', async (importOriginal) => {
     return {
         ...actual,
         cn: (...inputs: any[]) => inputs.filter(Boolean).join(' '),
-        Button: ({ children, onClick, title }: any) => <button onClick={onClick} title={title}>{children}</button>,
-        Input: (props: any) => <input {...props} data-testid="mock-input" />,
+        Button: ({ children, onClick, title, ...rest }: any) => <button onClick={onClick} title={title} {...rest}>{children}</button>,
+        Input: (props: any) => <input {...props} />,
+        Switch: ({ checked, onCheckedChange, ...props }: any) => (
+            <button
+                role="switch"
+                aria-checked={checked}
+                onClick={() => onCheckedChange?.(!checked)}
+                {...props}
+            />
+        ),
         ToggleGroup: ({ children, value, onValueChange }: any) => <div data-value={value} onChange={onValueChange}>{children}</div>,
         ToggleGroupItem: ({ children, value }: any) => <button data-value={value}>{children}</button>,
         Tabs: ({ value, onValueChange, children }: any) => (
@@ -338,4 +346,90 @@ describe('ObjectView Component', () => {
         const footer = await screen.findByTestId('record-count-footer');
         expect(footer).toBeInTheDocument();
     });
+
+    it('calls dataSource.updateViewConfig when saving view config', async () => {
+        const mockUpdateViewConfig = vi.fn().mockResolvedValue({});
+        const dsWithUpdate = {
+            ...mockDataSource,
+            updateViewConfig: mockUpdateViewConfig,
+        };
+        mockAuthUser = { id: 'u1', name: 'Admin', role: 'admin' };
+        mockUseParams.mockReturnValue({ objectName: 'opportunity' });
+
+        render(<ObjectView dataSource={dsWithUpdate} objects={mockObjects} onEdit={vi.fn()} />);
+
+        // Open config panel
+        fireEvent.click(screen.getByTitle('console.objectView.designTools'));
+        fireEvent.click(screen.getByText('console.objectView.editView'));
+        expect(screen.getByTestId('view-config-panel')).toBeInTheDocument();
+
+        // Wait for draft to be initialized from activeView, then modify
+        const titleInput = await screen.findByDisplayValue('All Opportunities');
+        fireEvent.change(titleInput, { target: { value: 'My Custom View' } });
+
+        // Save button should appear after dirty state
+        const saveBtn = await screen.findByTestId('view-config-save');
+        fireEvent.click(saveBtn);
+
+        expect(mockUpdateViewConfig).toHaveBeenCalledOnce();
+        expect(mockUpdateViewConfig).toHaveBeenCalledWith(
+            'opportunity',
+            'all',
+            expect.objectContaining({ label: 'My Custom View' }),
+        );
+    });
+
+    it('logs warning when dataSource.updateViewConfig is not available', async () => {
+        const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+        mockAuthUser = { id: 'u1', name: 'Admin', role: 'admin' };
+        mockUseParams.mockReturnValue({ objectName: 'opportunity' });
+
+        render(<ObjectView dataSource={mockDataSource} objects={mockObjects} onEdit={vi.fn()} />);
+
+        // Open config panel
+        fireEvent.click(screen.getByTitle('console.objectView.designTools'));
+        fireEvent.click(screen.getByText('console.objectView.editView'));
+
+        // Make a change and save
+        const titleInput = await screen.findByDisplayValue('All Opportunities');
+        fireEvent.change(titleInput, { target: { value: 'Changed' } });
+        const saveBtn = await screen.findByTestId('view-config-save');
+        fireEvent.click(saveBtn);
+
+        expect(warnSpy).toHaveBeenCalledWith(
+            expect.stringContaining('updateViewConfig is not available'),
+        );
+        warnSpy.mockRestore();
+    });
+
+    it('logs error when dataSource.updateViewConfig rejects', async () => {
+        const errorSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
+        const dsWithFailingUpdate = {
+            ...mockDataSource,
+            updateViewConfig: vi.fn().mockRejectedValue(new Error('Network error')),
+        };
+        mockAuthUser = { id: 'u1', name: 'Admin', role: 'admin' };
+        mockUseParams.mockReturnValue({ objectName: 'opportunity' });
+
+        render(<ObjectView dataSource={dsWithFailingUpdate} objects={mockObjects} onEdit={vi.fn()} />);
+
+        // Open config panel
+        fireEvent.click(screen.getByTitle('console.objectView.designTools'));
+        fireEvent.click(screen.getByText('console.objectView.editView'));
+
+        // Make a change and save
+        const titleInput = await screen.findByDisplayValue('All Opportunities');
+        fireEvent.change(titleInput, { target: { value: 'Failed' } });
+        const saveBtn = await screen.findByTestId('view-config-save');
+        fireEvent.click(saveBtn);
+
+        // Wait for the promise rejection to be caught
+        await vi.waitFor(() => {
+            expect(errorSpy).toHaveBeenCalledWith(
+                expect.stringContaining('Failed to persist view config'),
+                expect.any(Error),
+            );
+        });
+        errorSpy.mockRestore();
+    });
 });
diff --git a/apps/console/src/components/ObjectView.tsx b/apps/console/src/components/ObjectView.tsx
index 441455e2b4..ca5fc7a55a 100644
--- a/apps/console/src/components/ObjectView.tsx
+++ b/apps/console/src/components/ObjectView.tsx
@@ -72,7 +72,22 @@ export function ObjectView({ dataSource, objects, onEdit, onRowClick }: any) {
     const handleViewConfigSave = useCallback((draft: Record<string, any>) => {
         setViewDraft(draft);
         setRefreshKey(k => k + 1);
-    }, []);
+
+        // Persist to backend if dataSource supports it
+        if (dataSource?.updateViewConfig) {
+            const objName = objectName;
+            const vid = draft.id;
+            if (objName && vid) {
+                dataSource.updateViewConfig(objName, vid, draft).catch((err: any) => {
+                    console.error('[ViewConfigPanel] Failed to persist view config:', err);
+                });
+            } else {
+                console.warn('[ViewConfigPanel] Cannot persist view config: missing objectName or viewId.');
+            }
+        } else {
+            console.warn('[ViewConfigPanel] dataSource.updateViewConfig is not available. View config saved locally only.');
+        }
+    }, [dataSource, objectName]);
     
     const handleOpenEditor = useCallback((editor: EditorPanelType) => {
         console.info('[ViewConfigPanel] Open editor:', editor);
diff --git a/packages/types/src/data.ts b/packages/types/src/data.ts
index b775708c03..4aa18b825b 100644
--- a/packages/types/src/data.ts
+++ b/packages/types/src/data.ts
@@ -237,6 +237,19 @@ export interface DataSource<T = any> {
    */
   getView?(objectName: string, viewId: string): Promise<any | null>;
 
+  /**
+   * Persist a view configuration to the backend.
+   * Called when a user saves view settings (columns, filters, sort, toggles, etc.)
+   * from the inline ViewConfigPanel.
+   * Optional — implementations that do not support view persistence may omit this.
+   *
+   * @param objectName - Object name
+   * @param viewId - View identifier (e.g., 'all', 'pipeline')
+   * @param config - The full view configuration to persist
+   * @returns Promise resolving to the persisted config (or void)
+   */
+  updateViewConfig?(objectName: string, viewId: string, config: Record<string, any>): Promise<Record<string, any> | void>;
+
   /**
    * Get an application definition by name or ID.
    * Used by app shells to render server-defined navigation, branding, and layout.