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+      'view own unpublished content',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/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_form_display.node.ief_test_revisions_complex.default.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.ief_test_revisions_complex.default.yml
deleted file mode 100644
index 3eca1e9..0000000
--- a/tests/modules/inline_entity_form_test/config/optional/core.entity_form_display.node.ief_test_revisions_complex.default.yml
+++ /dev/null
@@ -1,66 +0,0 @@
-langcode: en
-status: true
-dependencies:
-  config:
-    - field.field.node.ief_test_revisions_complex.field_entity_ref_revision
-    - node.type.ief_test_revisions_complex
-  module:
-    - entity_reference_revisions
-    - inline_entity_form
-    - path
-    - text
-id: node.ief_test_revisions_complex.default
-targetEntityType: node
-bundle: ief_test_revisions_complex
-mode: default
-content:
-  created:
-    type: datetime_timestamp
-    weight: 10
-    settings: {  }
-    third_party_settings: {  }
-  field_entity_ref_revision:
-    weight: 32
-    settings:
-      form_mode: default
-      label_singular: ''
-      label_plural: ''
-      allow_new: true
-      match_operator: CONTAINS
-      override_labels: false
-      allow_existing: false
-    third_party_settings: {  }
-    type: inline_entity_form_complex
-  path:
-    type: path
-    weight: 30
-    settings: {  }
-    third_party_settings: {  }
-  promote:
-    type: boolean_checkbox
-    settings:
-      display_label: true
-    weight: 15
-    third_party_settings: {  }
-  sticky:
-    type: boolean_checkbox
-    settings:
-      display_label: true
-    weight: 16
-    third_party_settings: {  }
-  title:
-    type: string_textfield
-    weight: -5
-    settings:
-      size: 60
-      placeholder: ''
-    third_party_settings: {  }
-  uid:
-    type: entity_reference_autocomplete
-    weight: 5
-    settings:
-      match_operator: CONTAINS
-      size: 60
-      placeholder: ''
-    third_party_settings: {  }
-hidden: {  }
diff --git a/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.ief_test_revisions_complex.default.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_1.default.yml
similarity index 54%
copy from tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.ief_test_revisions_complex.default.yml
copy to tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_1.default.yml
index bfe78e3..887fc62 100644
--- a/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.ief_test_revisions_complex.default.yml
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_1.default.yml
@@ -1,20 +1,19 @@
-langcode: en
+trimIefIdParentslangcode: en
 status: true
 dependencies:
   config:
-    - field.field.node.ief_test_revisions_complex.field_entity_ref_revision
-    - node.type.ief_test_revisions_complex
+    - field.field.node.err_level_1.field_level_2_items
+    - node.type.err_level_1
   module:
     - entity_reference_revisions
-    - text
     - user
-id: node.ief_test_revisions_complex.default
+id: node.err_level_1.default
 targetEntityType: node
-bundle: ief_test_revisions_complex
+bundle: err_level_1
 mode: default
 content:
-  field_entity_ref_revision:
-    weight: 102
+  field_level_2_items:
+    weight: 101
     label: above
     settings:
       view_mode: default
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.ief_test_revisions_complex.default.yml b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_2.default.yml
similarity index 54%
rename from tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.ief_test_revisions_complex.default.yml
rename to tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_2.default.yml
index bfe78e3..7a2e001 100644
--- a/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.ief_test_revisions_complex.default.yml
+++ b/tests/modules/inline_entity_form_test/config/optional/core.entity_view_display.node.err_level_2.default.yml
@@ -1,20 +1,19 @@
-langcode: en
+trimIefIdParentslangcode: en
 status: true
 dependencies:
   config:
-    - field.field.node.ief_test_revisions_complex.field_entity_ref_revision
-    - node.type.ief_test_revisions_complex
+    - field.field.node.err_level_2.field_level_3_items
+    - node.type.err_level_2
   module:
     - entity_reference_revisions
-    - text
     - user
-id: node.ief_test_revisions_complex.default
+id: node.err_level_2.default
 targetEntityType: node
-bundle: ief_test_revisions_complex
+bundle: err_level_2
 mode: default
 content:
-  field_entity_ref_revision:
-    weight: 102
+  field_level_3_items:
+    weight: 101
     label: above
     settings:
       view_mode: default
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.ief_test_revisions_complex.field_entity_ref_revision.yml b/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_1.field_level_2_items.yml
similarity index 54%
copy from tests/modules/inline_entity_form_test/config/optional/field.field.node.ief_test_revisions_complex.field_entity_ref_revision.yml
copy to tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_1.field_level_2_items.yml
index ac005d2..025d09c 100644
--- a/tests/modules/inline_entity_form_test/config/optional/field.field.node.ief_test_revisions_complex.field_entity_ref_revision.yml
+++ b/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_1.field_level_2_items.yml
@@ -1,16 +1,17 @@
-langcode: en
+trimIefIdParentslangcode: en
 status: true
 dependencies:
   config:
-    - field.storage.node.field_entity_ref_revision
-    - node.type.ief_test_revisions_complex
+    - field.storage.node.field_level_2_items
+    - node.type.err_level_1
+    - node.type.err_level_2
   module:
     - entity_reference_revisions
-id: node.ief_test_revisions_complex.field_entity_ref_revision
-field_name: field_entity_ref_revision
+id: node.err_level_1.field_level_2_items
+field_name: field_level_2_items
 entity_type: node
-bundle: ief_test_revisions_complex
-label: 'entity ref revision'
+bundle: err_level_1
+label: 'Level 2 Items'
 description: ''
 required: false
 translatable: false
@@ -20,8 +21,9 @@ settings:
   handler: 'default:node'
   handler_settings:
     target_bundles:
-      ief_test_custom: ief_test_custom
+      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.ief_test_revisions_complex.field_entity_ref_revision.yml b/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_2.field_level_3_items.yml
similarity index 54%
rename from tests/modules/inline_entity_form_test/config/optional/field.field.node.ief_test_revisions_complex.field_entity_ref_revision.yml
rename to tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_2.field_level_3_items.yml
index ac005d2..e285cec 100644
--- a/tests/modules/inline_entity_form_test/config/optional/field.field.node.ief_test_revisions_complex.field_entity_ref_revision.yml
+++ b/tests/modules/inline_entity_form_test/config/optional/field.field.node.err_level_2.field_level_3_items.yml
@@ -1,16 +1,17 @@
-langcode: en
+trimIefIdParentslangcode: en
 status: true
 dependencies:
   config:
-    - field.storage.node.field_entity_ref_revision
-    - node.type.ief_test_revisions_complex
+    - field.storage.node.field_level_3_items
+    - node.type.err_level_2
+    - node.type.err_level_3
   module:
     - entity_reference_revisions
-id: node.ief_test_revisions_complex.field_entity_ref_revision
-field_name: field_entity_ref_revision
+id: node.err_level_2.field_level_3_items
+field_name: field_level_3_items
 entity_type: node
-bundle: ief_test_revisions_complex
-label: 'entity ref revision'
+bundle: err_level_2
+label: 'Level 3 Items'
 description: ''
 required: false
 translatable: false
@@ -20,8 +21,9 @@ settings:
   handler: 'default:node'
   handler_settings:
     target_bundles:
-      ief_test_custom: ief_test_custom
+      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_entity_ref_revision.yml b/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_2_items.yml
similarity index 73%
copy from tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_entity_ref_revision.yml
copy to tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_2_items.yml
index 88a0955..1070cc3 100644
--- a/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_entity_ref_revision.yml
+++ b/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_2_items.yml
@@ -1,18 +1,18 @@
-langcode: en
+trimIefIdParentslangcode: en
 status: true
 dependencies:
   module:
     - entity_reference_revisions
     - node
-id: node.field_entity_ref_revision
-field_name: field_entity_ref_revision
+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
+cardinality: -1
 translatable: true
 indexes: {  }
 persist_with_no_fields: false
diff --git a/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_entity_ref_revision.yml b/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_3_items.yml
similarity index 73%
rename from tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_entity_ref_revision.yml
rename to tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_3_items.yml
index 88a0955..757c48a 100644
--- a/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_entity_ref_revision.yml
+++ b/tests/modules/inline_entity_form_test/config/optional/field.storage.node.field_level_3_items.yml
@@ -1,18 +1,18 @@
-langcode: en
+trimIefIdParentslangcode: en
 status: true
 dependencies:
   module:
     - entity_reference_revisions
     - node
-id: node.field_entity_ref_revision
-field_name: field_entity_ref_revision
+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
+cardinality: -1
 translatable: true
 indexes: {  }
 persist_with_no_fields: 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
diff --git a/tests/modules/inline_entity_form_test/config/optional/node.type.ief_test_revisions_complex.yml b/tests/modules/inline_entity_form_test/config/optional/node.type.ief_test_revisions_complex.yml
deleted file mode 100644
index 480e4ff..0000000
--- a/tests/modules/inline_entity_form_test/config/optional/node.type.ief_test_revisions_complex.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-langcode: en
-status: true
-dependencies:
-  module:
-    - entity_reference_revisions
-name: 'IEF test revisions complex'
-type: ief_test_revisions_complex
-description: ''
-help: ''
-new_revision: true
-preview_mode: 1
-display_submitted: true