diff --git a/packages/twenty-front/src/modules/page-layout/components/PageLayoutRendererContent.tsx b/packages/twenty-front/src/modules/page-layout/components/PageLayoutRendererContent.tsx
index 25b7538167..cd632779f4 100644
--- a/packages/twenty-front/src/modules/page-layout/components/PageLayoutRendererContent.tsx
+++ b/packages/twenty-front/src/modules/page-layout/components/PageLayoutRendererContent.tsx
@@ -116,6 +116,9 @@ export const PageLayoutRendererContent = () => {
           <PageLayoutTabListEffect
             tabs={sortedTabs}
             componentInstanceId={tabListInstanceId}
+            defaultTabIdToFocusOnMobileAndSidePanel={
+              currentPageLayout.defaultTabIdToFocusOnMobileAndSidePanel
+            }
           />
           {(sortedTabs.length > 1 || isPageLayoutInEditMode) && (
             <StyledPageLayoutTabList
diff --git a/packages/twenty-front/src/modules/page-layout/components/PageLayoutTabListEffect.tsx b/packages/twenty-front/src/modules/page-layout/components/PageLayoutTabListEffect.tsx
index bccc2bd676..c860253308 100644
--- a/packages/twenty-front/src/modules/page-layout/components/PageLayoutTabListEffect.tsx
+++ b/packages/twenty-front/src/modules/page-layout/components/PageLayoutTabListEffect.tsx
@@ -1,6 +1,9 @@
 import { type PageLayoutTab } from '@/page-layout/types/PageLayoutTab';
+import { getPageLayoutTabListInitialActiveTabId } from '@/page-layout/utils/getPageLayoutTabListInitialActiveTabId';
+import { useLayoutRenderingContext } from '@/ui/layout/contexts/LayoutRenderingContext';
 import { activeTabIdComponentState } from '@/ui/layout/tab-list/states/activeTabIdComponentState';
 import { type TabListProps } from '@/ui/layout/tab-list/types/TabListProps';
+import { useIsMobile } from '@/ui/utilities/responsive/hooks/useIsMobile';
 import { useRecoilComponentState } from '@/ui/utilities/state/component-state/hooks/useRecoilComponentState';
 import { useEffect } from 'react';
 
@@ -9,20 +12,30 @@ type PageLayoutTabListEffectProps = Pick<
   'componentInstanceId' | 'onChangeTab'
 > & {
   tabs: PageLayoutTab[];
+  defaultTabIdToFocusOnMobileAndSidePanel?: string;
 };
 
 export const PageLayoutTabListEffect = ({
   tabs,
   onChangeTab,
   componentInstanceId,
+  defaultTabIdToFocusOnMobileAndSidePanel,
 }: PageLayoutTabListEffectProps) => {
   const [activeTabId, setActiveTabId] = useRecoilComponentState(
     activeTabIdComponentState,
     componentInstanceId,
   );
 
-  const activeTabExists = tabs.some((tab) => tab.id === activeTabId);
-  const initialActiveTabId = activeTabExists ? activeTabId : tabs[0]?.id;
+  const isMobile = useIsMobile();
+  const { isInRightDrawer } = useLayoutRenderingContext();
+
+  const initialActiveTabId = getPageLayoutTabListInitialActiveTabId({
+    activeTabId,
+    tabs,
+    defaultTabIdToFocusOnMobileAndSidePanel,
+    isMobile,
+    isInRightDrawer,
+  });
 
   useEffect(() => {
     setActiveTabId(initialActiveTabId);
diff --git a/packages/twenty-front/src/modules/page-layout/constants/DefaultWorkflowRunPageLayout.ts b/packages/twenty-front/src/modules/page-layout/constants/DefaultWorkflowRunPageLayout.ts
index c882e6c11c..d19be39f4f 100644
--- a/packages/twenty-front/src/modules/page-layout/constants/DefaultWorkflowRunPageLayout.ts
+++ b/packages/twenty-front/src/modules/page-layout/constants/DefaultWorkflowRunPageLayout.ts
@@ -15,6 +15,7 @@ export const DEFAULT_WORKFLOW_RUN_PAGE_LAYOUT: PageLayout = {
   createdAt: new Date().toISOString(),
   updatedAt: new Date().toISOString(),
   deletedAt: null,
+  defaultTabIdToFocusOnMobileAndSidePanel: 'workflow-run-tab-flow',
   tabs: [
     // Fields tab (position 100)
     {
diff --git a/packages/twenty-front/src/modules/page-layout/constants/DefaultWorkflowVersionPageLayout.ts b/packages/twenty-front/src/modules/page-layout/constants/DefaultWorkflowVersionPageLayout.ts
index d65c28bd51..b2538e98b9 100644
--- a/packages/twenty-front/src/modules/page-layout/constants/DefaultWorkflowVersionPageLayout.ts
+++ b/packages/twenty-front/src/modules/page-layout/constants/DefaultWorkflowVersionPageLayout.ts
@@ -15,6 +15,7 @@ export const DEFAULT_WORKFLOW_VERSION_PAGE_LAYOUT: PageLayout = {
   createdAt: new Date().toISOString(),
   updatedAt: new Date().toISOString(),
   deletedAt: null,
+  defaultTabIdToFocusOnMobileAndSidePanel: 'workflow-version-tab-flow',
   tabs: [
     // Fields tab (position 100)
     {
diff --git a/packages/twenty-front/src/modules/page-layout/types/PageLayout.ts b/packages/twenty-front/src/modules/page-layout/types/PageLayout.ts
index 017aacf957..a06ca3d6a5 100644
--- a/packages/twenty-front/src/modules/page-layout/types/PageLayout.ts
+++ b/packages/twenty-front/src/modules/page-layout/types/PageLayout.ts
@@ -3,4 +3,5 @@ import { type PageLayout as PageLayoutGenerated } from '~/generated/graphql';
 
 export type PageLayout = Omit<PageLayoutGenerated, 'tabs'> & {
   tabs: PageLayoutTab[];
+  defaultTabIdToFocusOnMobileAndSidePanel?: string;
 };
diff --git a/packages/twenty-front/src/modules/page-layout/utils/__tests__/getPageLayoutTabListInitialActiveTabId.test.ts b/packages/twenty-front/src/modules/page-layout/utils/__tests__/getPageLayoutTabListInitialActiveTabId.test.ts
new file mode 100644
index 0000000000..457ce48477
--- /dev/null
+++ b/packages/twenty-front/src/modules/page-layout/utils/__tests__/getPageLayoutTabListInitialActiveTabId.test.ts
@@ -0,0 +1,226 @@
+import { type PageLayoutTab } from '@/page-layout/types/PageLayoutTab';
+import { getPageLayoutTabListInitialActiveTabId } from '../getPageLayoutTabListInitialActiveTabId';
+
+describe('getPageLayoutTabListInitialActiveTabId', () => {
+  const createMockTab = (id: string): PageLayoutTab => ({
+    id,
+    pageLayoutId: 'page-layout-1',
+    title: `Tab ${id}`,
+    position: 0,
+    widgets: [],
+    createdAt: '2024-01-01T00:00:00.000Z',
+    updatedAt: '2024-01-01T00:00:00.000Z',
+  });
+
+  const mockTabs: PageLayoutTab[] = [
+    createMockTab('tab-1'),
+    createMockTab('tab-2'),
+    createMockTab('tab-3'),
+  ];
+
+  describe('when activeTabId exists in tabs', () => {
+    it('should return activeTabId regardless of context', () => {
+      const result = getPageLayoutTabListInitialActiveTabId({
+        activeTabId: 'tab-2',
+        tabs: mockTabs,
+        defaultTabIdToFocusOnMobileAndSidePanel: 'tab-3',
+        isMobile: true,
+        isInRightDrawer: true,
+      });
+
+      expect(result).toBe('tab-2');
+    });
+
+    it('should return activeTabId even when not on mobile or in drawer', () => {
+      const result = getPageLayoutTabListInitialActiveTabId({
+        activeTabId: 'tab-1',
+        tabs: mockTabs,
+        defaultTabIdToFocusOnMobileAndSidePanel: 'tab-3',
+        isMobile: false,
+        isInRightDrawer: false,
+      });
+
+      expect(result).toBe('tab-1');
+    });
+  });
+
+  describe('when activeTabId does not exist in tabs', () => {
+    describe('on mobile or in right drawer', () => {
+      it('should return defaultTabIdToFocusOnMobileAndSidePanel when on mobile and default exists', () => {
+        const result = getPageLayoutTabListInitialActiveTabId({
+          activeTabId: 'non-existent-tab',
+          tabs: mockTabs,
+          defaultTabIdToFocusOnMobileAndSidePanel: 'tab-3',
+          isMobile: true,
+          isInRightDrawer: false,
+        });
+
+        expect(result).toBe('tab-3');
+      });
+
+      it('should return defaultTabIdToFocusOnMobileAndSidePanel when in right drawer and default exists', () => {
+        const result = getPageLayoutTabListInitialActiveTabId({
+          activeTabId: null,
+          tabs: mockTabs,
+          defaultTabIdToFocusOnMobileAndSidePanel: 'tab-2',
+          isMobile: false,
+          isInRightDrawer: true,
+        });
+
+        expect(result).toBe('tab-2');
+      });
+
+      it('should return defaultTabIdToFocusOnMobileAndSidePanel when on mobile and in right drawer', () => {
+        const result = getPageLayoutTabListInitialActiveTabId({
+          activeTabId: null,
+          tabs: mockTabs,
+          defaultTabIdToFocusOnMobileAndSidePanel: 'tab-1',
+          isMobile: true,
+          isInRightDrawer: true,
+        });
+
+        expect(result).toBe('tab-1');
+      });
+
+      it('should fallback to first tab when defaultTabIdToFocusOnMobileAndSidePanel does not exist', () => {
+        const result = getPageLayoutTabListInitialActiveTabId({
+          activeTabId: null,
+          tabs: mockTabs,
+          defaultTabIdToFocusOnMobileAndSidePanel: 'non-existent-tab',
+          isMobile: true,
+          isInRightDrawer: false,
+        });
+
+        expect(result).toBe('tab-1');
+      });
+
+      it('should fallback to first tab when defaultTabIdToFocusOnMobileAndSidePanel is undefined', () => {
+        const result = getPageLayoutTabListInitialActiveTabId({
+          activeTabId: null,
+          tabs: mockTabs,
+          defaultTabIdToFocusOnMobileAndSidePanel: undefined,
+          isMobile: true,
+          isInRightDrawer: false,
+        });
+
+        expect(result).toBe('tab-1');
+      });
+    });
+
+    describe('not on mobile and not in right drawer', () => {
+      it('should return first tab when default is provided', () => {
+        const result = getPageLayoutTabListInitialActiveTabId({
+          activeTabId: null,
+          tabs: mockTabs,
+          defaultTabIdToFocusOnMobileAndSidePanel: 'tab-3',
+          isMobile: false,
+          isInRightDrawer: false,
+        });
+
+        expect(result).toBe('tab-1');
+      });
+
+      it('should return first tab when default is not provided', () => {
+        const result = getPageLayoutTabListInitialActiveTabId({
+          activeTabId: null,
+          tabs: mockTabs,
+          defaultTabIdToFocusOnMobileAndSidePanel: undefined,
+          isMobile: false,
+          isInRightDrawer: false,
+        });
+
+        expect(result).toBe('tab-1');
+      });
+    });
+  });
+
+  describe('edge cases', () => {
+    it('should return null when tabs array is empty', () => {
+      const result = getPageLayoutTabListInitialActiveTabId({
+        activeTabId: null,
+        tabs: [],
+        defaultTabIdToFocusOnMobileAndSidePanel: 'tab-1',
+        isMobile: false,
+        isInRightDrawer: false,
+      });
+
+      expect(result).toBe(null);
+    });
+
+    it('should return null when tabs array is empty even with default on mobile', () => {
+      const result = getPageLayoutTabListInitialActiveTabId({
+        activeTabId: null,
+        tabs: [],
+        defaultTabIdToFocusOnMobileAndSidePanel: 'tab-1',
+        isMobile: true,
+        isInRightDrawer: false,
+      });
+
+      expect(result).toBe(null);
+    });
+
+    it('should handle activeTabId being null', () => {
+      const result = getPageLayoutTabListInitialActiveTabId({
+        activeTabId: null,
+        tabs: mockTabs,
+        defaultTabIdToFocusOnMobileAndSidePanel: undefined,
+        isMobile: false,
+        isInRightDrawer: false,
+      });
+
+      expect(result).toBe('tab-1');
+    });
+
+    it('should handle single tab array', () => {
+      const singleTab = [createMockTab('only-tab')];
+
+      const result = getPageLayoutTabListInitialActiveTabId({
+        activeTabId: null,
+        tabs: singleTab,
+        defaultTabIdToFocusOnMobileAndSidePanel: undefined,
+        isMobile: false,
+        isInRightDrawer: false,
+      });
+
+      expect(result).toBe('only-tab');
+    });
+  });
+
+  describe('priority order', () => {
+    it('should prioritize activeTabId over default and context', () => {
+      const result = getPageLayoutTabListInitialActiveTabId({
+        activeTabId: 'tab-1',
+        tabs: mockTabs,
+        defaultTabIdToFocusOnMobileAndSidePanel: 'tab-2',
+        isMobile: true,
+        isInRightDrawer: true,
+      });
+
+      expect(result).toBe('tab-1');
+    });
+
+    it('should prioritize valid default over first tab when on mobile', () => {
+      const result = getPageLayoutTabListInitialActiveTabId({
+        activeTabId: 'non-existent',
+        tabs: mockTabs,
+        defaultTabIdToFocusOnMobileAndSidePanel: 'tab-3',
+        isMobile: true,
+        isInRightDrawer: false,
+      });
+
+      expect(result).toBe('tab-3');
+    });
+
+    it('should fallback to first tab when default is invalid on mobile', () => {
+      const result = getPageLayoutTabListInitialActiveTabId({
+        activeTabId: 'non-existent',
+        tabs: mockTabs,
+        defaultTabIdToFocusOnMobileAndSidePanel: 'invalid-tab',
+        isMobile: true,
+        isInRightDrawer: false,
+      });
+
+      expect(result).toBe('tab-1');
+    });
+  });
+});
diff --git a/packages/twenty-front/src/modules/page-layout/utils/getPageLayoutTabListInitialActiveTabId.ts b/packages/twenty-front/src/modules/page-layout/utils/getPageLayoutTabListInitialActiveTabId.ts
new file mode 100644
index 0000000000..e4b580fc92
--- /dev/null
+++ b/packages/twenty-front/src/modules/page-layout/utils/getPageLayoutTabListInitialActiveTabId.ts
@@ -0,0 +1,41 @@
+import { type PageLayoutTab } from '@/page-layout/types/PageLayoutTab';
+import { isDefined } from 'twenty-shared/utils';
+
+type GetPageLayoutTabListInitialActiveTabIdParams = {
+  activeTabId: string | null;
+  tabs: PageLayoutTab[];
+  defaultTabIdToFocusOnMobileAndSidePanel?: string;
+  isMobile: boolean;
+  isInRightDrawer: boolean;
+};
+
+export const getPageLayoutTabListInitialActiveTabId = ({
+  activeTabId,
+  tabs,
+  defaultTabIdToFocusOnMobileAndSidePanel,
+  isMobile,
+  isInRightDrawer,
+}: GetPageLayoutTabListInitialActiveTabIdParams): string | null => {
+  const activeTabExists = tabs.some((tab) => tab.id === activeTabId);
+
+  if (activeTabExists) {
+    return activeTabId;
+  }
+
+  const isOnMobileOrSidePanel = isMobile || isInRightDrawer;
+
+  if (
+    isOnMobileOrSidePanel &&
+    isDefined(defaultTabIdToFocusOnMobileAndSidePanel)
+  ) {
+    const defaultTabExists = tabs.some(
+      (tab) => tab.id === defaultTabIdToFocusOnMobileAndSidePanel,
+    );
+
+    if (defaultTabExists) {
+      return defaultTabIdToFocusOnMobileAndSidePanel;
+    }
+  }
+
+  return tabs[0]?.id ?? null;
+};