diff --git a/src/ConfigImporterIgnore.php b/src/ConfigImporterIgnore.php
index 9add23f..43e0b4d 100644
--- a/src/ConfigImporterIgnore.php
+++ b/src/ConfigImporterIgnore.php
@@ -76,15 +76,48 @@ class ConfigImporterIgnore {
     /** @var SharedTempStore $temp_store */
     $temp_store = \Drupal::service('user.shared_tempstore')->get('config_ignore');
     $config_to_ignore = $temp_store->get('config_to_ignore');
+    $config_names_ignored = [];
     foreach ($config_to_ignore as $op) {
       foreach ($op as $config_name => $config) {
         /** @var \Drupal\Core\Config\Config $config_to_restore */
         $config_to_restore = \Drupal::service('config.factory')->getEditable($config_name);
         $config_to_restore->setData($config)->save();
+        $config_names_ignored[] = $config_name;
       }
     }
     $context['finished'] = 1;
     $temp_store->delete('config_to_ignore');
+
+    // Inform about the config entities ignored.
+    // We have two formats, on for browser output and one for terminal.
+    if (!empty($config_names_ignored)) {
+
+      // The list of names looks different depending on output medium.
+      // If terminal (CLI), then no markup.
+      if (php_sapi_name() == 'cli' || isset($_SERVER['argc']) && is_numeric($_SERVER['argc'] && $_SERVER['argc'] > 0)) {
+        $names_list = "\n\r  " . implode("\n\r  ", $config_names_ignored);
+      }
+      else {
+        $output = [
+          '#theme' => 'item_list',
+          '#list_type' => 'ul',
+          '#items' => $config_names_ignored,
+        ];
+        $names_list = render($output);
+      }
+
+      // `PluralTranslatableMarkup` does not seem to handle HTML as well as
+      // plain t() does. It will not allow the <ul> list in the browser, and
+      // renders the lists HTML as clear text.
+      if (count($config_names_ignored) == 1) {
+        $message = t('The following config entity was ignored: @list', ['@list' => $names_list]);
+      }
+      else {
+        $message = t('The following @count config entities was ignored: @list', ['@count' => count($config_names_ignored), '@list' => $names_list]);
+      }
+
+      drupal_set_message($message, 'warning');
+    }
   }
 
 }
diff --git a/src/Tests/ConfigIgnoreTest.php b/src/Tests/ConfigIgnoreTest.php
index 266d7cf..1d450f1 100644
--- a/src/Tests/ConfigIgnoreTest.php
+++ b/src/Tests/ConfigIgnoreTest.php
@@ -61,6 +61,9 @@ class ConfigIgnoreTest extends WebTestBase {
     // Validate if the title from the imported config was rejected.
     $this->assertText('Test import');
 
+    // Validate that the user gets a message about what has been ignored.
+    $this->assertText('The following config entity was ignored');
+
   }
 
   /**
@@ -92,6 +95,9 @@ class ConfigIgnoreTest extends WebTestBase {
 
     // Validate if the title from the imported config was rejected.
     $this->assertText('Test import');
+
+    // Validate that the user gets a message about what has been ignored.
+    $this->assertText('The following config entity was ignored');
   }
 
 }