diff --git a/src/components/BookTravelButton.tsx b/src/components/BookTravelButton.tsx
index 29cdf852d7df..600815723502 100644
--- a/src/components/BookTravelButton.tsx
+++ b/src/components/BookTravelButton.tsx
@@ -7,6 +7,7 @@ import useLocalize from '@hooks/useLocalize';
 import useOnyx from '@hooks/useOnyx';
 import usePermissions from '@hooks/usePermissions';
 import usePolicy from '@hooks/usePolicy';
+import usePrimaryContactMethod from '@hooks/usePrimaryContactMethod';
 import useScreenBoundDynamicRoute from '@hooks/useScreenBoundDynamicRoute';
 import useStyleUtils from '@hooks/useStyleUtils';
 import useThemeStyles from '@hooks/useThemeStyles';
@@ -28,7 +29,6 @@ import type WithSentryLabel from '@src/types/utils/SentryLabel';
 
 import type {ReactElement} from 'react';
 
-import {emailSelector} from '@selectors/Session';
 import {Str} from 'expensify-common';
 import React, {useEffect, useState} from 'react';
 
@@ -67,15 +67,11 @@ function BookTravelButton({
     const illustrations = useMemoizedLazyIllustrations(['RocketDude']);
     const {translate} = useLocalize();
     const {environmentURL} = useEnvironment();
-    const [account] = useOnyx(ONYXKEYS.ACCOUNT);
-    const primaryLogin = account?.primaryLogin ?? '';
-
     const policy = usePolicy(activePolicyID);
     const blockIfDefaultWorkspaceLacksTravel = useDefaultWorkspaceTravelGuard();
     const [errorMessage, setErrorMessage] = useState<string | ReactElement>('');
     const [travelSettings] = useOnyx(ONYXKEYS.NVP_TRAVEL_SETTINGS);
-    const [sessionEmail] = useOnyx(ONYXKEYS.SESSION, {selector: emailSelector});
-    const primaryContactMethod = primaryLogin ?? sessionEmail ?? '';
+    const primaryContactMethod = usePrimaryContactMethod();
     const {isBetaEnabled} = usePermissions();
     const {showConfirmModal} = useConfirmModal();
     const [policies] = useOnyx(ONYXKEYS.COLLECTION.POLICY);
diff --git a/src/hooks/usePrimaryContactMethod.ts b/src/hooks/usePrimaryContactMethod.ts
index e74503410a6b..47135eb7b7be 100644
--- a/src/hooks/usePrimaryContactMethod.ts
+++ b/src/hooks/usePrimaryContactMethod.ts
@@ -7,7 +7,9 @@ import useOnyx from './useOnyx';
 function usePrimaryContactMethod(): string {
     const [account] = useOnyx(ONYXKEYS.ACCOUNT);
     const [sessionEmail] = useOnyx(ONYXKEYS.SESSION, {selector: emailSelector});
-    return account?.primaryLogin ?? sessionEmail ?? '';
+    // primaryLogin is sometimes stored as an empty string rather than being absent, so treat it as missing and fall back to the session email.
+    // eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
+    return account?.primaryLogin || sessionEmail || '';
 }
 
 export default usePrimaryContactMethod;
diff --git a/tests/unit/components/BookTravelButtonTest.tsx b/tests/unit/components/BookTravelButtonTest.tsx
index 6995535406e0..c558c157cc76 100644
--- a/tests/unit/components/BookTravelButtonTest.tsx
+++ b/tests/unit/components/BookTravelButtonTest.tsx
@@ -328,6 +328,52 @@ describe('BookTravelButton', () => {
         });
     });
 
+    describe('when account.primaryLogin is absent from Onyx (e.g. a session restored from storage after a reload)', () => {
+        it('falls back to the session email instead of blocking the user with the contact-method error', async () => {
+            // Given a validated admin whose work email is only known from the session, not from account.primaryLogin
+            await act(async () => {
+                await Onyx.merge(`${ONYXKEYS.COLLECTION.POLICY}${POLICY_ID}`, provisionedPolicy);
+                await Onyx.merge(ONYXKEYS.ACCOUNT, {validated: true});
+                await Onyx.merge(ONYXKEYS.SESSION, {email: USER_LOGIN});
+                await Onyx.merge(ONYXKEYS.NVP_TRAVEL_SETTINGS, {hasAcceptedTerms: false});
+                await Onyx.merge(ONYXKEYS.PRIVATE_PERSONAL_DETAILS, {legalFirstName: 'Test', legalLastName: 'User'});
+                await waitForBatchedUpdatesWithAct();
+            });
+            renderBookTravelButton();
+            await waitForBatchedUpdatesWithAct();
+
+            // When the admin presses the book travel button
+            fireEvent.press(screen.getByText('Book a trip'));
+            await waitForBatchedUpdatesWithAct();
+
+            // Then travel enablement proceeds rather than surfacing the "add a work email" error
+            expect(Navigation.navigate).toHaveBeenCalledWith(ENABLE_TRAVEL_ROUTE);
+            expect(screen.queryByText(/add a work email as your primary login/)).toBeNull();
+        });
+
+        it('falls back to the session email when primaryLogin is stored as an empty string', async () => {
+            // Given a validated admin whose account.primaryLogin is present but empty, a state the app writes in practice
+            await act(async () => {
+                await Onyx.merge(`${ONYXKEYS.COLLECTION.POLICY}${POLICY_ID}`, provisionedPolicy);
+                await Onyx.merge(ONYXKEYS.ACCOUNT, {validated: true, primaryLogin: ''});
+                await Onyx.merge(ONYXKEYS.SESSION, {email: USER_LOGIN});
+                await Onyx.merge(ONYXKEYS.NVP_TRAVEL_SETTINGS, {hasAcceptedTerms: false});
+                await Onyx.merge(ONYXKEYS.PRIVATE_PERSONAL_DETAILS, {legalFirstName: 'Test', legalLastName: 'User'});
+                await waitForBatchedUpdatesWithAct();
+            });
+            renderBookTravelButton();
+            await waitForBatchedUpdatesWithAct();
+
+            // When the admin presses the book travel button
+            fireEvent.press(screen.getByText('Book a trip'));
+            await waitForBatchedUpdatesWithAct();
+
+            // Then travel enablement proceeds rather than surfacing the "add a work email" error
+            expect(Navigation.navigate).toHaveBeenCalledWith(ENABLE_TRAVEL_ROUTE);
+            expect(screen.queryByText(/add a work email as your primary login/)).toBeNull();
+        });
+    });
+
     describe('when the user has a personal-email login', () => {
         it('shows the public-domain error even when legal details are missing', async () => {
             // Given a user logged in with a public-domain email and no legal name set yet
diff --git a/tests/unit/hooks/usePrimaryContactMethod.test.ts b/tests/unit/hooks/usePrimaryContactMethod.test.ts
index e7b82701cd2e..9b9480a74ddd 100644
--- a/tests/unit/hooks/usePrimaryContactMethod.test.ts
+++ b/tests/unit/hooks/usePrimaryContactMethod.test.ts
@@ -51,6 +51,30 @@ describe('usePrimaryContactMethod', () => {
         expect(result.current).toBe('session-only@expensify.com');
     });
 
+    it('should fall back to session email when primaryLogin is an empty string', async () => {
+        await act(async () => {
+            await Onyx.merge(ONYXKEYS.ACCOUNT, {primaryLogin: ''});
+            await Onyx.merge(ONYXKEYS.SESSION, {email: 'session-only@expensify.com'});
+            await waitForBatchedUpdates();
+        });
+
+        const {result} = renderHook(() => usePrimaryContactMethod());
+
+        expect(result.current).toBe('session-only@expensify.com');
+    });
+
+    it('should return empty string when primaryLogin is empty and there is no session email', async () => {
+        await act(async () => {
+            await Onyx.merge(ONYXKEYS.ACCOUNT, {primaryLogin: ''});
+            await Onyx.merge(ONYXKEYS.SESSION, {});
+            await waitForBatchedUpdates();
+        });
+
+        const {result} = renderHook(() => usePrimaryContactMethod());
+
+        expect(result.current).toBe('');
+    });
+
     it('should return empty string when neither primaryLogin nor session email exist', async () => {
         await act(async () => {
             await Onyx.merge(ONYXKEYS.ACCOUNT, {});