diff --git a/app/controllers/concerns/turbo_stream_concern.rb b/app/controllers/concerns/turbo_stream_concern.rb
index 8d1a8a0c8..b6aaa0110 100644
--- a/app/controllers/concerns/turbo_stream_concern.rb
+++ b/app/controllers/concerns/turbo_stream_concern.rb
@@ -37,8 +37,8 @@ def turbo_stream_display_error_modal(errors)
     turbo_stream_display_modal(partial: "common/error_modal", locals: { errors: }, status: :unprocessable_entity)
   end
 
-  def turbo_stream_display_custom_error_modal(errors)
-    turbo_stream_display_modal(partial: "common/custom_errors_modal", locals: { errors: },
+  def turbo_stream_display_custom_error_modal(errors:, title:)
+    turbo_stream_display_modal(partial: "common/custom_errors_modal", locals: { errors:, title: },
                                status: :unprocessable_entity)
   end
 end
diff --git a/app/controllers/invitations_controller.rb b/app/controllers/invitations_controller.rb
index 47772dc6d..8484ea5fe 100644
--- a/app/controllers/invitations_controller.rb
+++ b/app/controllers/invitations_controller.rb
@@ -24,10 +24,13 @@ def create # rubocop:disable Metrics/AbcSize
             #   window.Turbo.renderStreamMessage.
             # Discussion ici : https://github.com/gip-inclusion/rdv-insertion/pull/2361#discussion_r1784538358
             turbo_stream_html: turbo_stream.replace("remote_modal", partial: "common/custom_errors_modal",
-                                                                    locals: { errors: invite_user.errors })
+                                                                    locals: { errors: invite_user.errors,
+                                                                              title: "Impossible d'inviter l'usager" })
           }, status: :unprocessable_entity
         end
-        format.turbo_stream { turbo_stream_display_custom_error_modal(invite_user.errors) }
+        format.turbo_stream do
+          turbo_stream_display_custom_error_modal(errors: invite_user.errors, title: "Impossible d'inviter l'usager")
+        end
       end
     end
   end
diff --git a/app/views/common/_custom_errors_modal.html.erb b/app/views/common/_custom_errors_modal.html.erb
index 37b79bcbb..178b52490 100644
--- a/app/views/common/_custom_errors_modal.html.erb
+++ b/app/views/common/_custom_errors_modal.html.erb
@@ -3,7 +3,11 @@
     <div class="text-center mb-3">
       <%= image_tag "illustrations/error-line.svg", alt: "Illustration d'un message d'erreur", class: "mb-3" %>
     </div>
-    <h4 class="text-center"><b>Impossible d'inviter l'usager</b></h4>
+      <% if local_assigns[:title] %>
+        <h4 class="text-center"><b><%= local_assigns[:title] %></b></h4>
+      <% else %>
+        <h4 class="text-center"><b>Oups! Une erreur est survenue 👷‍</b></h4>
+      <% end %>
     <div class="p-3">
       <% errors.each_with_index do |error, index| %>
         <% if error.is_a?(TemplatedErrorPresenter) %>