diff --git a/src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php b/src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php
index 9162646..35e5f88 100644
--- a/src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php
+++ b/src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php
@@ -22,7 +22,8 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  *   id = "inline_entity_form_complex",
  *   label = @Translation("Inline entity form - Complex"),
  *   field_types = {
- *     "entity_reference"
+ *     "entity_reference",
+ *     "entity_reference_revisions",
  *   },
  *   multiple_values = true
  * )
diff --git a/src/Plugin/Field/FieldWidget/InlineEntityFormSimple.php b/src/Plugin/Field/FieldWidget/InlineEntityFormSimple.php
index 9e9f2f5..2516097 100644
--- a/src/Plugin/Field/FieldWidget/InlineEntityFormSimple.php
+++ b/src/Plugin/Field/FieldWidget/InlineEntityFormSimple.php
@@ -18,7 +18,8 @@ use Drupal\inline_entity_form\TranslationHelper;
  *   id = "inline_entity_form_simple",
  *   label = @Translation("Inline entity form - Simple"),
  *   field_types = {
- *     "entity_reference"
+ *     "entity_reference",
+ *     "entity_reference_revisions",
  *   },
  *   multiple_values = false
  * )
diff --git a/src/Tests/ComplexWidgetRevisionsWebTest.php b/src/Tests/ComplexWidgetRevisionsWebTest.php
new file mode 100644
index 0000000..2db0fec
--- /dev/null
+++ b/src/Tests/ComplexWidgetRevisionsWebTest.php
@@ -0,0 +1,114 @@
+<?php
+
+namespace Drupal\inline_entity_form\Tests;
+use Drupal\Component\Utility\SafeMarkup;
+use Drupal\Core\Extension\MissingDependencyException;
+
+/**
+ * IEF complex entity reference revisions tests.
+ *
+ * @group inline_entity_form
+ */
+class ComplexWidgetRevisionsWebTest extends InlineEntityFormTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = [
+    'field',
+    'field_ui',
+    'entity_reference_revisions',
+    'inline_entity_form_test',
+  ];
+
+  /**
+   * URL to add new content.
+   *
+   * @var string
+   */
+  protected $formContentAddUrl;
+
+  /**
+   * Prepares environment for
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $this->user = $this->createUser([
+      'create err_level_1 content',
+      'edit any err_level_1 content',
+      'delete any err_level_1 content',
+      'create err_level_2 content',
+      'edit any err_level_2 content',
+      'delete any err_level_2 content',
+      'create err_level_3 content',
+      'edit any err_level_3 content',
+      'delete any err_level_3 content',
+      'view own unpublished content',
+      'administer content types',
+    ]);
+    $this->drupalLogin($this->user);
+
+    $this->formContentAddUrl = 'node/add/err_level_1';
+  }
+
+  /**
+   * Tests saving entity reference revisions' field types at depth.
+   */
+  public function testRevisionsAtDepth() {
+    $this->drupalGet($this->formContentAddUrl);
+
+    // Open up level 2 and 3 IEF forms.
+    $this->drupalPostAjaxForm(NULL, [], $this->getButtonName('//input[@type="submit" and @value="Add new node" and @data-drupal-selector="edit-field-level-2-items-actions-ief-add"]'));
+    $this->assertResponse(200, 'Opening level 2 items inline form was successful.');
+    $this->drupalPostAjaxForm(NULL, [], $this->getButtonName('//input[@type="submit" and @value="Add new node" and @data-drupal-selector="edit-field-level-2-items-form-inline-entity-form-field-level-3-items-actions-ief-add"]'));
+    $this->assertResponse(200, 'Opening level 3 items inline form was successful.');
+
+    // Save level 3 IEF form.
+    $edit = ['field_level_2_items[form][inline_entity_form][field_level_3_items][form][inline_entity_form][title][0][value]' => 'Level 3'];
+    $this->drupalPostAjaxForm(NULL, $edit, $this->getButtonName('//input[@type="submit" and @value="Create node" and @data-drupal-selector="edit-field-level-2-items-form-inline-entity-form-field-level-3-items-form-inline-entity-form-actions-ief-add-save"]'));
+    $this->assertResponse(200, 'Creating level 3 node via inline form was successful.');
+
+    // Save level 2 IEF form.
+    $edit = ['field_level_2_items[form][inline_entity_form][title][0][value]' => 'Level 2'];
+    $this->drupalPostAjaxForm(NULL, $edit, $this->getButtonName('//input[@type="submit" and @value="Create node" and @data-drupal-selector="edit-field-level-2-items-form-inline-entity-form-actions-ief-add-save"]'));
+    $this->assertResponse(200, 'Creating level 2 node via inline form was successful.');
+
+    // Save the top level entity.
+    $edit = ['title[0][value]' => 'Level 1'];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    $this->assertResponse(200, 'Saving parent entity was successful.');
+
+    // Re-edit the created node to test for revisions
+    $node = $this->drupalGetNodeByTitle('Level 1');
+    $this->drupalGet('node/' . $node->id() . '/edit');
+
+    // Open up level 2 and 3 IEF forms.
+    $this->drupalPostAjaxForm(NULL, [], $this->getButtonName('//input[@type="submit" and @value="Edit" and @data-drupal-selector="edit-field-level-2-items-entities-0-actions-ief-entity-edit"]'));
+    $this->assertResponse(200, 'Opening level 2 items inline form was successful.');
+    $this->drupalPostAjaxForm(NULL, [], $this->getButtonName('//input[@type="submit" and @value="Edit" and @data-drupal-selector="edit-field-level-2-items-form-inline-entity-form-entities-0-form-field-level-3-items-entities-0-actions-ief-entity-edit"]'));
+    $this->assertResponse(200, 'Opening level 3 items inline form was successful.');
+
+    // Save level 3 IEF form.
+    $edit = ['field_level_2_items[form][inline_entity_form][entities][0][form][field_level_3_items][form][inline_entity_form][entities][0][form][title][0][value]' => 'Level 3.1'];
+    $this->drupalPostAjaxForm(NULL, $edit, $this->getButtonName('//input[@type="submit" and @value="Update node" and @data-drupal-selector="edit-field-level-2-items-form-inline-entity-form-entities-0-form-field-level-3-items-form-inline-entity-form-entities-0-form-actions-ief-edit-save"]'));
+    $this->assertResponse(200, 'Editing level 3 node via inline form was successful.');
+
+    // Save level 2 IEF form.
+    $edit = ['field_level_2_items[form][inline_entity_form][entities][0][form][title][0][value]' => 'Level 2.1'];
+    $this->drupalPostAjaxForm(NULL, $edit, $this->getButtonName('//input[@type="submit" and @value="Update node" and @data-drupal-selector="edit-field-level-2-items-form-inline-entity-form-entities-0-form-actions-ief-edit-save"]'));
+    $this->assertResponse(200, 'Editing level 2 node via inline form was successful.');
+
+    // Save the top level entity.
+    $edit = ['title[0][value]' => 'Level 1.1'];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    $this->assertResponse(200, 'Saving parent entity was successful.');
+
+    $this->drupalGet('node/' . $node->id());
+    $this->assertText('Level 1.1', 'Top level node revision was saved and is active.');
+    $this->assertText('Level 2.1', 'Second level node revisions was saved and is active');
+    $this->assertText('Level 3.1', 'Top level node revision was saved and is active.');
+  }
+}
diff --git a/src/WidgetSubmit.php b/src/WidgetSubmit.php
index 98921a4..42f1c51 100644
--- a/src/WidgetSubmit.php
+++ b/src/WidgetSubmit.php
@@ -2,8 +2,11 @@
 
 namespace Drupal\inline_entity_form;
 
+use Drupal\Core\Entity\RevisionableInterface;
+use Drupal\Core\Entity\RevisionLogInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\inline_entity_form\Element\InlineEntityForm;
+use Drupal\node\NodeInterface;
 
 /**
  * Performs widget submission.
@@ -46,6 +49,19 @@ class WidgetSubmit {
           /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
           $entity = $entity_item['entity'];
           $handler = InlineEntityForm::getInlineFormHandler($entity->getEntityTypeId());
+          if ($entity instanceof RevisionableInterface && $entity->getEntityType()->isRevisionable()) {
+            $entity->setNewRevision();
+            if ($entity instanceof NodeInterface) {
+              $entity->setRevisionCreationTime(REQUEST_TIME);
+              // If a new revision is created, save the current user as revision author.
+              $entity->setRevisionAuthorId(\Drupal::currentUser()->id());
+            }
+            elseif ($entity instanceof RevisionLogInterface) {
+              // If a new revision is created, save the current user as revision author.
+              $entity->setRevisionUserId(\Drupal::currentUser()->id());
+              $entity->setRevisionCreationTime(REQUEST_TIME);
+            }
+          }
           $handler->save($entity);
           $widget_state['entities'][$delta]['needs_save'] = FALSE;
         }
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.base_field_override.node.err_level_1.promote.yml b/tests/modules/inline_entity_form_test/config/optional/core.base_field_override.node.err_level_1.promote.yml
new file mode 100644
index 0000000..4ddf2df
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.base_field_override.node.err_level_1.promote.yml
@@ -0,0 +1,21 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - node.type.err_level_1
+id: node.err_level_1.promote
+field_name: promote
+entity_type: node
+bundle: err_level_1
+label: 'Promoted to front page'
+description: ''
+required: false
+translatable: true
+default_value:
+  -
+    value: 0
+default_value_callback: ''
+settings:
+  on_label: 'On'
+  off_label: 'Off'
+field_type: boolean
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.base_field_override.node.err_level_2.promote.yml b/tests/modules/inline_entity_form_test/config/optional/core.base_field_override.node.err_level_2.promote.yml
new file mode 100644
index 0000000..cb90dff
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.base_field_override.node.err_level_2.promote.yml
@@ -0,0 +1,21 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - node.type.err_level_2
+id: node.err_level_2.promote
+field_name: promote
+entity_type: node
+bundle: err_level_2
+label: 'Promoted to front page'
+description: ''
+required: false
+translatable: true
+default_value:
+  -
+    value: 0
+default_value_callback: ''
+settings:
+  on_label: 'On'
+  off_label: 'Off'
+field_type: boolean
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.base_field_override.node.err_level_3.promote.yml b/tests/modules/inline_entity_form_test/config/optional/core.base_field_override.node.err_level_3.promote.yml
new file mode 100644
index 0000000..39c23b6
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.base_field_override.node.err_level_3.promote.yml
@@ -0,0 +1,21 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - node.type.err_level_3
+id: node.err_level_3.promote
+field_name: promote
+entity_type: node
+bundle: err_level_3
+label: 'Promoted to front page'
+description: ''
+required: false
+translatable: true
+default_value:
+  -
+    value: 0
+default_value_callback: ''
+settings:
+  on_label: 'On'
+  off_label: 'Off'
+field_type: boolean
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.err_level_1.default.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.err_level_1.default.yml
new file mode 100644
index 0000000..88114a6
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.err_level_1.default.yml
@@ -0,0 +1,38 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - field.field.node.err_level_1.field_level_2_items
+    - node.type.err_level_1
+  module:
+    - inline_entity_form
+id: node.err_level_1.default
+targetEntityType: node
+bundle: err_level_1
+mode: default
+content:
+  field_level_2_items:
+    weight: 31
+    settings:
+      match_operator: CONTAINS
+      form_mode: default
+      override_labels: false
+      label_singular: ''
+      label_plural: ''
+      allow_new: true
+      allow_existing: false
+    third_party_settings: {  }
+    type: inline_entity_form_complex
+  title:
+    type: string_textfield
+    weight: -5
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+hidden:
+  created: true
+  path: true
+  promote: true
+  sticky: true
+  uid: true
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.err_level_2.default.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.err_level_2.default.yml
new file mode 100644
index 0000000..849b2b4
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.err_level_2.default.yml
@@ -0,0 +1,38 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - field.field.node.err_level_2.field_level_3_items
+    - node.type.err_level_2
+  module:
+    - inline_entity_form
+id: node.err_level_2.default
+targetEntityType: node
+bundle: err_level_2
+mode: default
+content:
+  field_level_3_items:
+    weight: 1
+    settings:
+      match_operator: CONTAINS
+      form_mode: default
+      override_labels: false
+      label_singular: ''
+      label_plural: ''
+      allow_new: true
+      allow_existing: false
+    third_party_settings: {  }
+    type: inline_entity_form_complex
+  title:
+    type: string_textfield
+    weight: 0
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+hidden:
+  created: true
+  path: true
+  promote: true
+  sticky: true
+  uid: true
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.err_level_3.default.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.err_level_3.default.yml
new file mode 100644
index 0000000..7d94d96
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.err_level_3.default.yml
@@ -0,0 +1,23 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - node.type.err_level_3
+id: node.err_level_3.default
+targetEntityType: node
+bundle: err_level_3
+mode: default
+content:
+  title:
+    type: string_textfield
+    weight: -5
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+hidden:
+  created: true
+  path: true
+  promote: true
+  sticky: true
+  uid: true
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_1.default.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_1.default.yml
new file mode 100644
index 0000000..887fc62
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_1.default.yml
@@ -0,0 +1,25 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - field.field.node.err_level_1.field_level_2_items
+    - node.type.err_level_1
+  module:
+    - entity_reference_revisions
+    - user
+id: node.err_level_1.default
+targetEntityType: node
+bundle: err_level_1
+mode: default
+content:
+  field_level_2_items:
+    weight: 101
+    label: above
+    settings:
+      view_mode: default
+      link: ''
+    third_party_settings: {  }
+    type: entity_reference_revisions_entity_view
+  links:
+    weight: 100
+hidden: {  }
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_1.teaser.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_1.teaser.yml
new file mode 100644
index 0000000..ea334e8
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_1.teaser.yml
@@ -0,0 +1,16 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - core.entity_view_mode.node.teaser
+    - node.type.err_level_1
+  module:
+    - user
+id: node.err_level_1.teaser
+targetEntityType: node
+bundle: err_level_1
+mode: teaser
+content:
+  links:
+    weight: 100
+hidden: {  }
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_2.default.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_2.default.yml
new file mode 100644
index 0000000..7a2e001
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_2.default.yml
@@ -0,0 +1,25 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - field.field.node.err_level_2.field_level_3_items
+    - node.type.err_level_2
+  module:
+    - entity_reference_revisions
+    - user
+id: node.err_level_2.default
+targetEntityType: node
+bundle: err_level_2
+mode: default
+content:
+  field_level_3_items:
+    weight: 101
+    label: above
+    settings:
+      view_mode: default
+      link: ''
+    third_party_settings: {  }
+    type: entity_reference_revisions_entity_view
+  links:
+    weight: 100
+hidden: {  }
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_2.teaser.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_2.teaser.yml
new file mode 100644
index 0000000..8ccdf15
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_2.teaser.yml
@@ -0,0 +1,16 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - core.entity_view_mode.node.teaser
+    - node.type.err_level_2
+  module:
+    - user
+id: node.err_level_2.teaser
+targetEntityType: node
+bundle: err_level_2
+mode: teaser
+content:
+  links:
+    weight: 100
+hidden: {  }
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_3.default.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_3.default.yml
new file mode 100644
index 0000000..d3de6a5
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_3.default.yml
@@ -0,0 +1,15 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - node.type.err_level_3
+  module:
+    - user
+id: node.err_level_3.default
+targetEntityType: node
+bundle: err_level_3
+mode: default
+content:
+  links:
+    weight: 100
+hidden: {  }
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_3.teaser.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_3.teaser.yml
new file mode 100644
index 0000000..c119fd3
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_3.teaser.yml
@@ -0,0 +1,16 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - core.entity_view_mode.node.teaser
+    - node.type.err_level_3
+  module:
+    - user
+id: node.err_level_3.teaser
+targetEntityType: node
+bundle: err_level_3
+mode: teaser
+content:
+  links:
+    weight: 100
+hidden: {  }
diff --git a/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_1.field_level_2_items.yml b/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_1.field_level_2_items.yml
new file mode 100644
index 0000000..025d09c
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_1.field_level_2_items.yml
@@ -0,0 +1,29 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_level_2_items
+    - node.type.err_level_1
+    - node.type.err_level_2
+  module:
+    - entity_reference_revisions
+id: node.err_level_1.field_level_2_items
+field_name: field_level_2_items
+entity_type: node
+bundle: err_level_1
+label: 'Level 2 Items'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  handler: 'default:node'
+  handler_settings:
+    target_bundles:
+      err_level_2: err_level_2
+    sort:
+      field: _none
+    auto_create: false
+    auto_create_bundle: ''
+field_type: entity_reference_revisions
diff --git a/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_2.field_level_3_items.yml b/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_2.field_level_3_items.yml
new file mode 100644
index 0000000..e285cec
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_2.field_level_3_items.yml
@@ -0,0 +1,29 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_level_3_items
+    - node.type.err_level_2
+    - node.type.err_level_3
+  module:
+    - entity_reference_revisions
+id: node.err_level_2.field_level_3_items
+field_name: field_level_3_items
+entity_type: node
+bundle: err_level_2
+label: 'Level 3 Items'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  handler: 'default:node'
+  handler_settings:
+    target_bundles:
+      err_level_3: err_level_3
+    sort:
+      field: _none
+    auto_create: false
+    auto_create_bundle: ''
+field_type: entity_reference_revisions
diff --git a/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_2_items.yml b/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_2_items.yml
new file mode 100644
index 0000000..1070cc3
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_2_items.yml
@@ -0,0 +1,19 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  module:
+    - entity_reference_revisions
+    - node
+id: node.field_level_2_items
+field_name: field_level_2_items
+entity_type: node
+type: entity_reference_revisions
+settings:
+  target_type: node
+module: entity_reference_revisions
+locked: false
+cardinality: -1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_3_items.yml b/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_3_items.yml
new file mode 100644
index 0000000..757c48a
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_3_items.yml
@@ -0,0 +1,19 @@
+trimIefIdParentslangcode: en
+status: true
+dependencies:
+  module:
+    - entity_reference_revisions
+    - node
+id: node.field_level_3_items
+field_name: field_level_3_items
+entity_type: node
+type: entity_reference_revisions
+settings:
+  target_type: node
+module: entity_reference_revisions
+locked: false
+cardinality: -1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/tests/modules/inline_entity_form_test/config/optional/node.type.err_level_1.yml b/tests/modules/inline_entity_form_test/config/optional/node.type.err_level_1.yml
new file mode 100644
index 0000000..4865eb9
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/node.type.err_level_1.yml
@@ -0,0 +1,9 @@
+trimIefIdParentslangcode: en
+status: true
+name: 'Entity Reference Revisions (Level 1)'
+type: err_level_1
+description: 'Top level content type with an entity_reference_revisions field type to another content type.'
+help: ''
+new_revision: true
+preview_mode: 1
+display_submitted: false
diff --git a/tests/modules/inline_entity_form_test/config/optional/node.type.err_level_2.yml b/tests/modules/inline_entity_form_test/config/optional/node.type.err_level_2.yml
new file mode 100644
index 0000000..289dc9d
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/node.type.err_level_2.yml
@@ -0,0 +1,9 @@
+trimIefIdParentslangcode: en
+status: true
+name: 'Entity Reference Revisions (Level 2)'
+type: err_level_2
+description: 'Second level content type with an entity_reference_revisions field type to another content type.'
+help: ''
+new_revision: true
+preview_mode: 1
+display_submitted: false
diff --git a/tests/modules/inline_entity_form_test/config/optional/node.type.err_level_3.yml b/tests/modules/inline_entity_form_test/config/optional/node.type.err_level_3.yml
new file mode 100644
index 0000000..b22f916
--- /dev/null
+++ b/tests/modules/inline_entity_form_test/config/optional/node.type.err_level_3.yml
@@ -0,0 +1,9 @@
+trimIefIdParentslangcode: en
+status: true
+name: 'Entity Reference Revisions (Level 3)'
+type: err_level_3
+description: 'Third level content type.'
+help: ''
+new_revision: true
+preview_mode: 1
+display_submitted: false