diff --git a/app/helpers/content_items_helper.rb b/app/helpers/content_items_helper.rb
index 8a3d4c2c8..421be9c16 100644
--- a/app/helpers/content_items_helper.rb
+++ b/app/helpers/content_items_helper.rb
@@ -1,11 +1,11 @@
 module ContentItemsHelper
-  def email_subscription_success_banner_heading(account_flash)
+  def email_subscription_success_banner_heading(account_flash, locale = nil)
     if account_flash.include?("email-subscription-success")
-      sanitize(t("email.subscribe_title"))
+      sanitize(t("email.subscribe_title", locale:))
     elsif account_flash.include?("email-unsubscribe-success")
-      sanitize(t("email.unsubscribe_title"))
+      sanitize(t("email.unsubscribe_title", locale:))
     elsif account_flash.include?("email-subscription-already-subscribed")
-      sanitize(t("email.already_subscribed_title"))
+      sanitize(t("email.already_subscribed_title", locale:))
     end
   end
 
diff --git a/app/views/content_items/call_for_evidence.html.erb b/app/views/content_items/call_for_evidence.html.erb
index 944b6caee..7e2a8a969 100644
--- a/app/views/content_items/call_for_evidence.html.erb
+++ b/app/views/content_items/call_for_evidence.html.erb
@@ -4,7 +4,7 @@
   ) %>
 <% end %>
 
-<%= render 'shared/email_subscribe_unsubscribe_flash' %>
+<%= render 'shared/email_subscribe_unsubscribe_flash', { title: @content_item.title_and_context[:title] } %>
 
 <div class="govuk-grid-row">
   <div class="govuk-grid-column-two-thirds">
diff --git a/app/views/content_items/consultation.html.erb b/app/views/content_items/consultation.html.erb
index 5ee1eaa01..473d0e7da 100644
--- a/app/views/content_items/consultation.html.erb
+++ b/app/views/content_items/consultation.html.erb
@@ -4,7 +4,7 @@
   ) %>
 <% end %>
 
-<%= render 'shared/email_subscribe_unsubscribe_flash' %>
+<%= render 'shared/email_subscribe_unsubscribe_flash', { title: @content_item.title_and_context[:title] } %>
 
 <div class="govuk-grid-row">
   <div class="govuk-grid-column-two-thirds">
diff --git a/app/views/content_items/detailed_guide.html.erb b/app/views/content_items/detailed_guide.html.erb
index bb2ecaba9..8bf1709b5 100644
--- a/app/views/content_items/detailed_guide.html.erb
+++ b/app/views/content_items/detailed_guide.html.erb
@@ -55,7 +55,7 @@
   <% end %>
 <% end %>
 
-<%= render 'shared/email_subscribe_unsubscribe_flash' %>
+<%= render 'shared/email_subscribe_unsubscribe_flash', { title: @content_item.title_and_context[:title] } %>
 
 <div class="govuk-grid-row">
   <div class="govuk-grid-column-two-thirds">
diff --git a/app/views/content_items/publication.html.erb b/app/views/content_items/publication.html.erb
index 77184b7a9..369dd5a9b 100644
--- a/app/views/content_items/publication.html.erb
+++ b/app/views/content_items/publication.html.erb
@@ -13,7 +13,7 @@
   <% end %>
 <% end %>
 
-<%= render 'shared/email_subscribe_unsubscribe_flash' %>
+<%= render 'shared/email_subscribe_unsubscribe_flash', { title: @content_item.title } %>
 
 <div class="govuk-grid-row">
   <div class="govuk-grid-column-two-thirds">
diff --git a/app/views/shared/_email_subscribe_unsubscribe_flash.html.erb b/app/views/shared/_email_subscribe_unsubscribe_flash.html.erb
index 3624ccff1..2d0b759e6 100644
--- a/app/views/shared/_email_subscribe_unsubscribe_flash.html.erb
+++ b/app/views/shared/_email_subscribe_unsubscribe_flash.html.erb
@@ -5,11 +5,27 @@
 <% if show_email_subscription_success_banner?(@account_flash) %>
   <div class="govuk-grid-row govuk-!-margin-top-3">
     <div class="govuk-grid-column-two-thirds">
-      <%= render "govuk_publishing_components/components/success_alert", {
-        message: email_subscription_success_banner_heading(@account_flash),
-        description: banner_description,
-        margin_bottom: 0,
-      } %>
+      <%
+        ga4_data = {
+          event_name: "form_complete",
+          type: "email subscription",
+          text: email_subscription_success_banner_heading(@account_flash, :en),
+          section: local_assigns[:title],
+          action: "complete",
+          tool_name: "Get emails from GOV.UK"
+        }.to_json
+      %>
+      <%= content_tag(:div,
+        data: {
+          module: "ga4-auto-tracker",
+          ga4_auto: ga4_data
+        }) do %>
+        <%= render "govuk_publishing_components/components/success_alert", {
+          message: email_subscription_success_banner_heading(@account_flash),
+          description: banner_description,
+          margin_bottom: 0,
+        } %>
+      <% end %>
     </div>
   </div>
 <% end %>