diff --git a/modules/storages/app/controllers/storages/admin/storages_controller.rb b/modules/storages/app/controllers/storages/admin/storages_controller.rb
index 6ad24737f62c..3bf99d2784ea 100644
--- a/modules/storages/app/controllers/storages/admin/storages_controller.rb
+++ b/modules/storages/app/controllers/storages/admin/storages_controller.rb
@@ -31,6 +31,7 @@
 # Purpose: CRUD the global admin page of Storages (=Nextcloud servers)
 class Storages::Admin::StoragesController < ApplicationController
   using Storages::Peripherals::ServiceResultRefinements
+  include FlashMessagesHelper
 
   # See https://guides.rubyonrails.org/layouts_and_rendering.html for reference on layout
   layout 'admin'
@@ -133,19 +134,14 @@ def edit_host
   # Update is similar to create above
   # See also: create above
   # Called by: Global app/config/routes.rb to serve Web page
-  def update # rubocop:disable Metrics/AbcSize
+  def update
     service_result = ::Storages::Storages::UpdateService
                        .new(user: current_user, model: @storage)
                        .call(permitted_storage_params)
     @storage = service_result.result
 
     if service_result.success?
-      flash[:notice] = I18n.t(:notice_successful_update)
-
-      respond_to do |format|
-        format.html { redirect_to edit_admin_settings_storage_path(@storage) }
-        format.turbo_stream
-      end
+      respond_to { |format| format.turbo_stream }
     else
       respond_to do |format|
         format.html { render :edit }
@@ -159,15 +155,19 @@ def confirm_destroy
   end
 
   def destroy
-    Storages::Storages::DeleteService
+    service_result = Storages::Storages::DeleteService
       .new(user: User.current, model: @storage)
       .call
-      .match(
-        # rubocop:disable Rails/ActionControllerFlashBeforeRender
-        on_success: ->(*) { flash[:notice] = I18n.t(:notice_successful_delete) },
-        on_failure: ->(error) { flash[:error] = error.full_messages }
-        # rubocop:enable Rails/ActionControllerFlashBeforeRender
-      )
+
+    # rubocop:disable Rails/ActionControllerFlashBeforeRender
+    service_result.on_failure do
+      flash[:primer_banner] = { message: join_flash_messages(service_result.errors.full_messages), scheme: :danger }
+    end
+
+    service_result.on_success do
+      flash[:primer_banner] = { message: I18n.t(:notice_successful_delete), scheme: :success }
+    end
+    # rubocop:enable Rails/ActionControllerFlashBeforeRender
 
     redirect_to admin_settings_storages_path
   end
diff --git a/modules/storages/spec/features/admin_storages_spec.rb b/modules/storages/spec/features/admin_storages_spec.rb
index eab0f310d3dd..c470062d5571 100644
--- a/modules/storages/spec/features/admin_storages_spec.rb
+++ b/modules/storages/spec/features/admin_storages_spec.rb
@@ -373,6 +373,7 @@
       storage_delete_button.click
 
       expect(page).not_to have_text("Foo Nextcloud")
+      expect(page).to have_text('Successful deletion.')
       expect(page).to have_current_path(admin_settings_storages_path)
     end