diff --git a/app/controllers/admin/api_users_controller.rb b/app/controllers/admin/api_users_controller.rb
index cb2c6ff52..0eba34739 100644
--- a/app/controllers/admin/api_users_controller.rb
+++ b/app/controllers/admin/api_users_controller.rb
@@ -16,8 +16,8 @@ module Admin
 
       if @api_user.valid?
         @api_user.save!
-        flash[:notice] = I18n.t('record_created')
-        redirect_to admin_registrar_api_user_path(@api_user.registrar, @api_user)
+        redirect_to admin_registrar_api_user_path(@api_user.registrar, @api_user),
+                    notice: t('.created')
       else
         render 'new'
       end
@@ -38,8 +38,8 @@ module Admin
 
       if @api_user.valid?
         @api_user.save!
-        flash[:notice] = I18n.t('record_updated')
-        redirect_to admin_registrar_api_user_path(@api_user.registrar, @api_user)
+        redirect_to admin_registrar_api_user_path(@api_user.registrar, @api_user),
+                    notice: t('.updated')
       else
         render 'edit'
       end
@@ -47,7 +47,7 @@ module Admin
 
     def destroy
       @api_user.destroy!
-      redirect_to admin_registrar_path(@api_user.registrar), notice: t('record_deleted')
+      redirect_to admin_registrar_path(@api_user.registrar), notice: t('.deleted')
     end
 
     private
diff --git a/config/locales/admin/api_users.en.yml b/config/locales/admin/api_users.en.yml
index 0c8e6273c..49b72a2bd 100644
--- a/config/locales/admin/api_users.en.yml
+++ b/config/locales/admin/api_users.en.yml
@@ -5,18 +5,27 @@ en:
         header: API users
         active: Active
 
+      new:
+        header: New API user
+
+      create:
+        created: API user has been successfully created
+
       show:
         active: Active
         subject: Subject
         edit_btn: Edit
         delete_btn: Delete
 
-      new:
-        header: New API user
-
       edit:
         header: Edit API user
 
+      update:
+        updated: API user has been successfully updated
+
+      destroy:
+        deleted: API user has been successfully deleted
+
       form:
         active: Active
         create_btn: Create API user
diff --git a/test/system/admin_area/registrars/api_users_test.rb b/test/system/admin_area/registrars/api_users_test.rb
index 054261c71..5d833dde2 100644
--- a/test/system/admin_area/registrars/api_users_test.rb
+++ b/test/system/admin_area/registrars/api_users_test.rb
@@ -16,7 +16,7 @@ class AdminRegistrarsApiUsersSystemTest < ApplicationSystemTestCase
     fill_in 'Password', with: valid_password
     click_on 'Create API user'
 
-    assert_text 'Record created'
+    assert_text 'API user has been successfully created'
     assert_text "Username #{username}"
     new_api_user = ApiUser.last
     assert_current_path admin_registrar_api_user_path(registrar, new_api_user)
@@ -45,7 +45,7 @@ class AdminRegistrarsApiUsersSystemTest < ApplicationSystemTestCase
     fill_in 'Username', with: new_username
     click_link_or_button 'Update API user'
 
-    assert_text 'Record updated'
+    assert_text 'API user has been successfully updated'
     assert_text "Username #{new_username}"
     assert_current_path admin_registrar_api_user_path(api_user.registrar, api_user)
   end
@@ -56,7 +56,7 @@ class AdminRegistrarsApiUsersSystemTest < ApplicationSystemTestCase
     visit admin_registrar_api_user_path(api_user.registrar, api_user)
     click_on 'Delete'
 
-    assert_text 'Record deleted'
+    assert_text 'API user has been successfully deleted'
     assert_current_path admin_registrar_path(api_user.registrar)
   end