diff --git a/app/main/views/notifications.py b/app/main/views/notifications.py
index f4defa9b7..c1dcc884e 100644
--- a/app/main/views/notifications.py
+++ b/app/main/views/notifications.py
@@ -101,8 +101,13 @@ def view_notification(service_id, notification_id):
     show_cancel_button = notification['notification_type'] == 'letter' and \
         letter_can_be_cancelled(notification['status'], notification_created)
 
-    if request.args.get('help') == '0':
-        back_link = None
+    if get_help_argument():
+        back_link = url_for(
+            'main.send_test',
+            service_id=current_service.id,
+            template_id=template.id,
+            help='2',
+        )
     elif request.args.get('from_job'):
         back_link = url_for(
             'main.view_job',
diff --git a/app/main/views/send.py b/app/main/views/send.py
index ec0dc6f28..7d8696219 100644
--- a/app/main/views/send.py
+++ b/app/main/views/send.py
@@ -797,7 +797,20 @@ def get_back_link(service_id, template, step_index):
                 help=get_help_argument()
             )
         else:
-            return None
+            if step_index == 0:
+                return url_for(
+                    'main.start_tour',
+                    service_id=service_id,
+                    template_id=template.id,
+                )
+            elif step_index > 0:
+                return url_for(
+                    'main.send_test_step',
+                    service_id=service_id,
+                    template_id=template.id,
+                    step_index=step_index - 1,
+                    help=2,
+                )
     elif step_index == 0:
         if should_skip_template_page(template.template_type):
             return url_for(
diff --git a/tests/app/main/views/test_notifications.py b/tests/app/main/views/test_notifications.py
index 228a662c7..e9cc9d8aa 100644
--- a/tests/app/main/views/test_notifications.py
+++ b/tests/app/main/views/test_notifications.py
@@ -125,12 +125,22 @@ def test_notification_status_page_respects_redaction(
         partial(url_for, 'main.view_job', job_id='job_id'),
     ),
     (
-        {'help': '0'},
-        None,
+        {'help': '0'},  # not a valid help step
+        partial(url_for, 'main.view_notifications', message_type='sms', status='sending,delivered,failed'),
     ),
     (
         {'help': '0', 'from_job': 'job_id'},
-        None,
+        partial(url_for, 'main.view_job', job_id='job_id'),
+    ),
+    (
+        {'help': '1'},
+        partial(
+            url_for,
+            'main.send_test',
+            service_id=SERVICE_ONE_ID,
+            template_id='5407f4db-51c7-4150-8758-35412d42186a',
+            help='2'
+        ),
     ),
 ])
 def test_notification_status_shows_expected_back_link(
diff --git a/tests/app/main/views/test_send.py b/tests/app/main/views/test_send.py
index 7b951ccb8..36dc9adec 100644
--- a/tests/app/main/views/test_send.py
+++ b/tests/app/main/views/test_send.py
@@ -1669,6 +1669,50 @@ def test_send_test_sms_message_back_link_with_multiple_placeholders(
     )
 
 
+@pytest.mark.parametrize('step_index, expected_back_link', (
+    (0, partial(
+        url_for,
+        'main.start_tour',
+    )),
+    (1, partial(
+        url_for,
+        'main.send_test_step',
+        step_index=0,
+        help=2,
+    )),
+    (2, partial(
+        url_for,
+        'main.send_test_step',
+        step_index=1,
+        help=2,
+    ))
+))
+def test_send_test_sms_message_back_link_in_tour(
+    client_request,
+    mock_get_service_template_with_multiple_placeholders,
+    mock_has_no_jobs,
+    step_index,
+    expected_back_link,
+):
+    with client_request.session_transaction() as session:
+        session['recipient'] = '07900900123'
+        session['placeholders'] = {'phone number': '07900900123', 'one': 'bar'}
+        session['send_test_letter_page_count'] = None
+
+    page = client_request.get(
+        'main.send_test_step',
+        service_id=SERVICE_ONE_ID,
+        template_id=unchanging_fake_uuid,
+        step_index=step_index,
+        help=2,
+    )
+
+    assert page.select_one('.govuk-back-link')['href'] == expected_back_link(
+        service_id=SERVICE_ONE_ID,
+        template_id=unchanging_fake_uuid,
+    )
+
+
 def test_send_test_letter_clears_previous_page_cache(
     logged_in_platform_admin_client,
     mocker,