diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 8182d1efce64..0ccb2b338167 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -115,23 +115,23 @@ def due_date_distance_in_words(date)
     end
   end
 
-  def render_primer_flash_message?
-    flash[:primer_flash].present?
+  def render_primer_banner_message?
+    flash[:primer_banner].present?
   end
 
-  def render_primer_flash_message
-    return unless render_primer_flash_message?
+  def render_primer_banner_message
+    return unless render_primer_banner_message?
 
-    render(FlashMessageComponent.new(**flash[:primer_flash].to_hash))
+    render(BannerMessageComponent.new(**flash[:primer_banner].to_hash))
   end
 
   # Renders flash messages
-  def render_legacy_flash_messages
-    return if render_primer_flash_message?
+  def render_flash_messages
+    return if render_primer_banner_message?
 
     messages = flash
       .reject { |k, _| k.start_with? '_' }
-      .map { |k, v| render_legacy_flash_message(k, v) }
+      .map { |k, v| render_flash_message(k, v) }
 
     safe_join messages, "\n"
   end
@@ -144,24 +144,20 @@ def join_flash_messages(messages)
     end
   end
 
-  def render_legacy_flash_message(type, message, html_options = {}) # rubocop:disable Metrics/AbcSize
+  def render_flash_message(type, message, html_options = {})
     if type.to_s == 'notice'
       type = 'success'
     end
-
     toast_css_classes = ["op-toast -#{type}", html_options.delete(:class)]
-
     # Add autohide class to notice flashes if configured
     if type.to_s == 'success' && User.current.pref.auto_hide_popups?
       toast_css_classes << 'autohide-toaster'
     end
-
     html_options = { class: toast_css_classes.join(' '), role: 'alert' }.merge(html_options)
     close_button = content_tag :a, '', class: 'op-toast--close icon-context icon-close',
                                        title: I18n.t('js.close_popup_title'),
                                        tabindex: '0'
     toast = content_tag(:div, join_flash_messages(message), class: 'op-toast--content')
-
     content_tag :div, '', class: 'op-toast--wrapper' do
       content_tag :div, '', class: 'op-toast--casing' do
         content_tag :div, html_options do
diff --git a/app/views/layouts/base.html.erb b/app/views/layouts/base.html.erb
index f76b8584386b..b4ee58823b0e 100644
--- a/app/views/layouts/base.html.erb
+++ b/app/views/layouts/base.html.erb
@@ -115,7 +115,7 @@ See COPYRIGHT and LICENSE files for more details.
     <% end %>
     <div class="content-overlay"></div>
     <main id="content-wrapper" class="<%= initial_classes %>">
-      <%= render_primer_flash_message %>
+      <%= render_primer_banner_message %>
       <% if show_decoration %>
         <div id="breadcrumb" class="<%= initial_classes %><%= show_breadcrumb ? ' -show' : '' %>">
           <%= you_are_here_info %>
@@ -123,7 +123,7 @@ See COPYRIGHT and LICENSE files for more details.
           <%= call_hook :view_layouts_base_breadcrumb %>
         </div>
       <% end %>
-      <%= render_legacy_flash_messages %>
+      <%= render_flash_messages %>
       <% if show_onboarding_modal? %>
         <section data-augmented-model-wrapper
                  data-modal-initialize-now="true"
diff --git a/modules/meeting/app/components/banner_message_component.html.erb b/modules/meeting/app/components/banner_message_component.html.erb
new file mode 100644
index 000000000000..f9704a986934
--- /dev/null
+++ b/modules/meeting/app/components/banner_message_component.html.erb
@@ -0,0 +1,32 @@
+<%#-- copyright
+OpenProject is an open source project management software.
+Copyright (C) 2012-2023 the OpenProject GmbH
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License version 3.
+
+OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+Copyright (C) 2006-2013 Jean-Philippe Lang
+Copyright (C) 2010-2013 the ChiliProject Team
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+See COPYRIGHT and LICENSE files for more details.
+
+++#%>
+
+<%=
+  render(Primer::Alpha::Banner.new(full:, full_when_narrow:, dismiss_scheme:, icon:, scheme:,test_selector:)) { message }
+%>
diff --git a/modules/meeting/app/components/banner_message_component.rb b/modules/meeting/app/components/banner_message_component.rb
new file mode 100644
index 000000000000..cfec9cf6a504
--- /dev/null
+++ b/modules/meeting/app/components/banner_message_component.rb
@@ -0,0 +1,44 @@
+#-- copyright
+# OpenProject is an open source project management software.
+# Copyright (C) 2012-2023 the OpenProject GmbH
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See COPYRIGHT and LICENSE files for more details.
+#++
+
+class BannerMessageComponent < ApplicationComponent # rubocop:disable OpenProject/AddPreviewForViewComponent
+  def initialize(message: nil, full: false, full_when_narrow: false, dismiss_scheme: :none, icon: false, scheme: :default,
+                 test_selector: "primer-banner-message-component")
+    super
+
+    @message = message
+    @full = full
+    @full_when_narrow = full_when_narrow
+    @dismiss_scheme = dismiss_scheme
+    @icon = icon
+    @scheme = scheme
+    @test_selector = test_selector
+  end
+
+  attr_reader :message, :full, :full_when_narrow, :dismiss_scheme, :icon, :scheme, :test_selector
+end
diff --git a/modules/meeting/app/components/flash_message_component.rb b/modules/meeting/app/components/flash_message_component.rb
index 698aa0d1221b..bddfb6cc9fee 100644
--- a/modules/meeting/app/components/flash_message_component.rb
+++ b/modules/meeting/app/components/flash_message_component.rb
@@ -31,24 +31,22 @@ class FlashMessageComponent < ApplicationComponent
   include OpTurbo::Streamable
   include OpPrimer::ComponentHelpers
 
-  def initialize(message: nil, full: false, full_when_narrow: false, dismissible: false, icon: false, scheme: :default,
-                 test_selector: "primer-flash-message-component")
+  def initialize(message: nil, full: false, spacious: false, dismissible: false, icon: nil, scheme: :default)
     super
 
     @message = message
     @full = full
-    @full_when_narrow = full_when_narrow
-    @dismissible = dismissible
+    @spacious = spacious
+    @dismissible = dismissible # TODO: not working yet -> JS dependency not provided?
     @icon = icon
     @scheme = scheme
-    @test_selector = test_selector
   end
 
   def call
     component_wrapper do
       # even without provided message, the wrapper should be  rendered as this allows
       # for triggering a flash message via turbo stream
-      if message.present?
+      if @message.present?
         flash_partial
       end
     end
@@ -56,24 +54,9 @@ def call
 
   private
 
-  attr_reader :message, :full, :full_when_narrow, :dismissible, :icon, :scheme, :test_selector
-
   def flash_partial
-    # The banner component is similar to the flash message component, but is more feature rich.
-    #  - It ALWAYS renders with an icon
-    #  - It can be dismissed
-    #  - It allows for custom actions while flash messages only allow for a dismiss action (which doesn't work yet :/)
-    # See https://primer.style/components/banner/rails/alpha
-    render(
-      Primer::Alpha::Banner.new(
-        full:, full_when_narrow:,
-        dismiss_scheme:, icon:, scheme:,
-        test_selector:
-      )
-    ) { message }
-  end
-
-  def dismiss_scheme
-    dismissible ? :remove : :none
+    render(Primer::Beta::Flash.new(
+             full: @full, spacious: @spacious, dismissible: @dismissible, icon: @icon, scheme: @scheme
+           )) { @message }
   end
 end
diff --git a/modules/storages/app/controllers/storages/admin/automatically_managed_project_folders_controller.rb b/modules/storages/app/controllers/storages/admin/automatically_managed_project_folders_controller.rb
index 9fe01f4ebae0..6be4d24b03c4 100644
--- a/modules/storages/app/controllers/storages/admin/automatically_managed_project_folders_controller.rb
+++ b/modules/storages/app/controllers/storages/admin/automatically_managed_project_folders_controller.rb
@@ -74,10 +74,10 @@ def create
     service_result = call_update_service
 
     if service_result.success?
-      flash[:primer_flash] = {
+      flash[:primer_banner] = {
         message: I18n.t(:'storages.notice_successful_storage_connection'),
         scheme: :success,
-        dismissible: true,
+        dismiss_scheme: :hide,
         full: true
       }
       redirect_to admin_settings_storages_path
diff --git a/modules/storages/app/controllers/storages/admin/oauth_clients_controller.rb b/modules/storages/app/controllers/storages/admin/oauth_clients_controller.rb
index 8b785cf11dbe..2521b2c73e8e 100644
--- a/modules/storages/app/controllers/storages/admin/oauth_clients_controller.rb
+++ b/modules/storages/app/controllers/storages/admin/oauth_clients_controller.rb
@@ -78,10 +78,10 @@ def create # rubocop:disable Metrics/AbcSize, Metrics/PerceivedComplexity
             format.turbo_stream { render :create }
           end
         elsif @storage.provider_type_one_drive?
-          flash[:primer_flash] = {
+          flash[:primer_banner] = {
             message: I18n.t(:'storages.notice_successful_storage_connection'),
             scheme: :success,
-            dismissible: true,
+            dismiss_scheme: :hide,
             full: true
           }
           redirect_to admin_settings_storages_path