diff --git a/config/schema/feeds.schema.yml b/config/schema/feeds.schema.yml
index d8841e4..6271af3 100644
--- a/config/schema/feeds.schema.yml
+++ b/config/schema/feeds.schema.yml
@@ -116,6 +116,8 @@ feeds.processor.entity:
           type: string
     update_existing:
       type: integer
+    update_non_existent:
+      type: string
     skip_hash_check:
       type: boolean
     authorize:
diff --git a/src/Feeds/Processor/EntityProcessorBase.php b/src/Feeds/Processor/EntityProcessorBase.php
index 1467b9b..c204aa2 100644
--- a/src/Feeds/Processor/EntityProcessorBase.php
+++ b/src/Feeds/Processor/EntityProcessorBase.php
@@ -434,6 +434,7 @@ abstract class EntityProcessorBase extends ProcessorBase implements EntityProces
   public function defaultConfiguration() {
     $defaults = [
       'update_existing' => static::SKIP_EXISTING,
+      'update_non_existent' => static::KEEP_NON_EXISTENT,
       'skip_hash_check' => FALSE,
       'values' => [$this->entityType->getKey('bundle') => NULL],
       'authorize' => $this->entityType->isSubclassOf('Drupal\user\EntityOwnerInterface'),
@@ -730,4 +731,27 @@ abstract class EntityProcessorBase extends ProcessorBase implements EntityProces
       ->execute();
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function calculateDependencies() {
+    $dependencies = parent::calculateDependencies();
+
+    // Add dependency on entity type.
+    $entity_type_provider = \Drupal::entityTypeManager()
+      ->getDefinition($this->entityType())
+      ->getProvider();
+    $dependencies['module'][$entity_type_provider] = $entity_type_provider;
+
+    // For the 'update_non_existent' setting, add dependency on selected action.
+    if ($this->getConfiguration('update_non_existent') !== static::KEEP_NON_EXISTENT) {
+      $definition = \Drupal::service('plugin.manager.action')->getDefinition($this->getConfiguration('update_non_existent'));
+      if (isset($definition['provider'])) {
+        $dependencies['module'][$definition['provider']] = $definition['provider'];
+      }
+    }
+
+    return $dependencies;
+  }
+
 }
diff --git a/src/Feeds/Processor/Form/DefaultEntityProcessorForm.php b/src/Feeds/Processor/Form/DefaultEntityProcessorForm.php
index 425018e..a5d446b 100644
--- a/src/Feeds/Processor/Form/DefaultEntityProcessorForm.php
+++ b/src/Feeds/Processor/Form/DefaultEntityProcessorForm.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\feeds\Feeds\Processor\Form;
 
+use Drupal\Component\Plugin\ConfigurablePluginInterface;
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\feeds\Plugin\Type\ExternalPluginFormBase;
@@ -38,6 +39,17 @@ class DefaultEntityProcessorForm extends ExternalPluginFormBase {
     $times = [ProcessorInterface::EXPIRE_NEVER, 3600, 10800, 21600, 43200, 86400, 259200, 604800, 2592000, 2592000 * 3, 2592000 * 6, 31536000];
     $period = array_map([$this, 'formatExpire'], array_combine($times, $times));
 
+    $options = $this->getUpdateNonExistentActions();
+    if (!empty($options)) {
+      $form['update_non_existent'] = [
+        '#type' => 'select',
+        '#title' => $this->t('Previously imported items'),
+        '#description' => $this->t('Select what to do with items that were previously imported, but are now no longer in the feed.'),
+        '#options' => $options,
+        '#default_value' => $this->plugin->getConfiguration('update_non_existent'),
+      ];
+    }
+
     $form['expire'] = [
       '#type' => 'select',
       '#title' => $this->t('Expire @entities', $tokens),
@@ -131,4 +143,31 @@ class DefaultEntityProcessorForm extends ExternalPluginFormBase {
     return $this->t('after @time', ['@time' => \Drupal::service('date.formatter')->formatInterval($timestamp)]);
   }
 
+  /**
+   * Get available actions to apply on the entity.
+   *
+   * @return array
+   *   A list of applyable actions.
+   */
+  protected function getUpdateNonExistentActions() {
+    $action_definitions = \Drupal::service('plugin.manager.action')->getDefinitionsByType($this->plugin->entityType());
+    foreach ($action_definitions as $definition) {
+      // Filter out configurable actions.
+      $interfaces = class_implements($definition['class']);
+      if (isset($interfaces[ConfigurablePluginInterface::class])) {
+        continue;
+      }
+
+      $options[$definition['id']] = $definition['label'];
+    }
+
+    if (empty($options)) {
+      return [];
+    }
+
+    return [
+      '_keep' => $this->t('Keep'),
+    ] + $options;
+  }
+
 }
diff --git a/src/Feeds/Processor/NodeProcessor.php b/src/Feeds/Processor/NodeProcessor.php
index 2b4b9ca..2275a7a 100644
--- a/src/Feeds/Processor/NodeProcessor.php
+++ b/src/Feeds/Processor/NodeProcessor.php
@@ -22,13 +22,6 @@ namespace Drupal\feeds\Feeds\Processor;
 class NodeProcessor extends EntityProcessorBase {
 
   /**
-   * Unpublish items that no longer exist in the feed.
-   *
-   * @var string
-   */
-  const UNPUBLISH_NON_EXISTENT = 'unpublish';
-
-  /**
    * {@inheritdoc}
    */
   public function entityLabel() {
diff --git a/src/Plugin/Type/Processor/ProcessorInterface.php b/src/Plugin/Type/Processor/ProcessorInterface.php
index ca0206b..1bba7b9 100644
--- a/src/Plugin/Type/Processor/ProcessorInterface.php
+++ b/src/Plugin/Type/Processor/ProcessorInterface.php
@@ -41,18 +41,11 @@ interface ProcessorInterface extends FeedsPluginInterface {
   const EXPIRE_NEVER = -1;
 
   /**
-   * Ignore items that no longer exist in the feed.
+   * Keep items that no longer exist in the feed.
    *
    * @var string
    */
-  const SKIP_NON_EXISTENT = 'skip';
-
-  /**
-   * Delete items that no longer exist in the feed.
-   *
-   * @var string
-   */
-  const DELETE_NON_EXISTENT = 'delete';
+  const KEEP_NON_EXISTENT = '_keep';
 
   /**
    * Processes the results from a parser.
diff --git a/tests/src/Kernel/UpdateNonExistentTest.php b/tests/src/Kernel/UpdateNonExistentTest.php
index c8b415f..462e37a 100644
--- a/tests/src/Kernel/UpdateNonExistentTest.php
+++ b/tests/src/Kernel/UpdateNonExistentTest.php
@@ -5,7 +5,6 @@ namespace Drupal\Tests\feeds\Kernel;
 use Drupal\Component\Utility\Unicode;
 use Drupal\feeds\Entity\Feed;
 use Drupal\feeds\Entity\FeedType;
-use Drupal\feeds\Feeds\Processor\NodeProcessor;
 use Drupal\feeds\FeedInterface;
 use Drupal\feeds\FeedTypeInterface;
 use Drupal\node\Entity\Node;
@@ -87,7 +86,7 @@ class UpdateNonExistentTest extends FeedsKernelTestBase {
   public function testUnpublishNonExistentItems() {
     // Set 'update_non_existent' setting to 'unpublish'.
     $config = $this->feedType->getProcessor()->getConfiguration();
-    $config['update_non_existent'] = NodeProcessor::UNPUBLISH_NON_EXISTENT;
+    $config['update_non_existent'] = 'node_unpublish_action';
     $this->feedType->getProcessor()->setConfiguration($config);
 
     // Create a feed and import first file.
@@ -151,7 +150,7 @@ class UpdateNonExistentTest extends FeedsKernelTestBase {
   public function testDeleteNonExistentItems() {
     // Set 'update_non_existent' setting to 'unpublish'.
     $config = $this->feedType->getProcessor()->getConfiguration();
-    $config['update_non_existent'] = NodeProcessor::DELETE_NON_EXISTENT;
+    $config['update_non_existent'] = 'node_delete_action';
     $this->feedType->getProcessor()->setConfiguration($config);
 
     // Create a feed and import first file.