diff --git a/Build/phpstan-baseline-13.neon b/Build/phpstan-baseline-13.neon
index 07678c3e..a34f1638 100644
--- a/Build/phpstan-baseline-13.neon
+++ b/Build/phpstan-baseline-13.neon
@@ -61,3 +61,7 @@ parameters:
 			message: "#^Access to an undefined property B13\\\\Container\\\\Backend\\\\ContextMenu\\\\RecordContextMenuItemProvider\\:\\:\\$uriBuilder\\.$#"
 			count: 1
 			path: ../Classes/Backend/ContextMenu/RecordContextMenuItemProvider.php
+		-
+			message: "#^Instanceof between array and TYPO3\\\\CMS\\\\Core\\\\Domain\\\\RecordInterface will always evaluate to false\\.$#"
+			count: 1
+			path: ../Classes/Backend/Grid/ContainerGridColumnItem.php
diff --git a/Build/phpstan-baseline-14.neon b/Build/phpstan-baseline-14.neon
index b048f1a4..f428f1a2 100644
--- a/Build/phpstan-baseline-14.neon
+++ b/Build/phpstan-baseline-14.neon
@@ -23,3 +23,7 @@ parameters:
 			message: "#^Class TYPO3\\\\CMS\\\\Backend\\\\View\\\\PageLayoutContext constructor invoked with 2 parameters, 5 required\\.$#"
 			count: 1
 			path: ../Tests/Functional/Integrity/IntegrityTest.php
+		-
+			message: "#^Else branch is unreachable because previous condition is always true\\.$#"
+			count: 1
+			path: ../Classes/Backend/Grid/ContainerGridColumnItem.php
diff --git a/Classes/Backend/Grid/ContainerGridColumnItem.php b/Classes/Backend/Grid/ContainerGridColumnItem.php
index 60d22e71..beb09a03 100644
--- a/Classes/Backend/Grid/ContainerGridColumnItem.php
+++ b/Classes/Backend/Grid/ContainerGridColumnItem.php
@@ -13,15 +13,17 @@
  */
 
 use B13\Container\Domain\Model\Container;
+use B13\Container\Tca\Registry;
 use TYPO3\CMS\Backend\View\BackendLayout\Grid\GridColumnItem;
 use TYPO3\CMS\Backend\View\PageLayoutContext;
 use TYPO3\CMS\Core\Domain\RecordFactory;
+use TYPO3\CMS\Core\Domain\RecordInterface;
 use TYPO3\CMS\Core\Information\Typo3Version;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 
 class ContainerGridColumnItem extends GridColumnItem
 {
-    public function __construct(PageLayoutContext $context, ContainerGridColumn $column, array $record, protected Container $container, protected ?string $newContentUrl)
+    public function __construct(PageLayoutContext $context, ContainerGridColumn $column, array $record, protected Registry $tcaRegistry, protected Container $container, protected ?string $newContentUrl)
     {
         if ((GeneralUtility::makeInstance(Typo3Version::class))->getMajorVersion() > 13) {
             $recordFactory = GeneralUtility::makeInstance(RecordFactory::class);
@@ -44,7 +46,17 @@ public function getWrapperClassName(): string
         if ($this->isDisabled()) {
             $wrapperClassNames[] = 't3-page-ce-hidden t3js-hidden-record';
         }
-        // we do not need a "t3-page-ce-warning" class because we are build from Container
+        $record = $this->record;
+        if ($record instanceof RecordInterface) {
+            if (!$this->tcaRegistry->recordIsAllowedInContainerColumn($record)) {
+                $wrapperClassNames[] = 't3-page-ce-warning';
+            }
+        } else {
+            // v13
+            if (!$this->tcaRegistry->isAllowedInColumn($record['CType'], (int)$record['colPos'], $this->container->getCType())) {
+                $wrapperClassNames[] = 't3-page-ce-warning';
+            }
+        }
         return implode(' ', $wrapperClassNames);
     }
 
diff --git a/Classes/Backend/Preview/GridRenderer.php b/Classes/Backend/Preview/GridRenderer.php
index c3dd040e..fb397369 100644
--- a/Classes/Backend/Preview/GridRenderer.php
+++ b/Classes/Backend/Preview/GridRenderer.php
@@ -65,7 +65,7 @@ public function renderGrid(array $record, PageLayoutContext $context): string
                     $records = $container->getChildrenByColPos($col['colPos']);
                     foreach ($records as $contentRecord) {
                         $url = $this->newContentUrlBuilder->getNewContentUrlAfterChild($context, $container, (int)$col['colPos'], (int)$contentRecord['uid'], $defVals);
-                        $columnItem = GeneralUtility::makeInstance(ContainerGridColumnItem::class, $context, $columnObject, $contentRecord, $container, $url);
+                        $columnItem = GeneralUtility::makeInstance(ContainerGridColumnItem::class, $context, $columnObject, $contentRecord, $this->tcaRegistry, $container, $url);
                         $columnObject->addItem($columnItem);
                     }
                 }
diff --git a/Classes/Listener/PageContentPreviewRendering.php b/Classes/Listener/PageContentPreviewRendering.php
index 08ae4032..4f8ba9d3 100644
--- a/Classes/Listener/PageContentPreviewRendering.php
+++ b/Classes/Listener/PageContentPreviewRendering.php
@@ -19,6 +19,7 @@
 use TYPO3\CMS\Core\Attribute\AsEventListener;
 use TYPO3\CMS\Core\Domain\Record;
 use TYPO3\CMS\Core\Information\Typo3Version;
+use TYPO3\CMS\Core\Localization\LanguageService;
 
 #[AsEventListener(identifier: 'tx-container-page-content-preview-rendering', before: 'typo3-backend/fluid-preview/content')]
 class PageContentPreviewRendering
@@ -37,6 +38,14 @@ public function __invoke(PageContentPreviewRenderingEvent $event): void
         }
 
         $record = $event->getRecord();
+        if ($this->tcaRegistry->recordIsAllowedInContainerColumn($record) === false) {
+            $labels = $event->getPageLayoutContext()->getContentTypeLabels();
+            $label = $labels[$record->getRecordType()] ?? $record->getRecordType();
+            $label = sprintf($this->getLanguageService()->sL('core.core:labels.typeNotAllowedInColumn'), $label);
+            $content = '<span class="badge badge-warning">' . $label . '</span>';
+            $event->setPreviewContent($content);
+            return;
+        }
         $recordType = $record->getRecordType();
         if (!$this->tcaRegistry->isContainerElement($recordType)) {
             return;
@@ -47,4 +56,9 @@ public function __invoke(PageContentPreviewRenderingEvent $event): void
             $event->setRecord($recordWithRenderedGrid);
         }
     }
+
+    protected function getLanguageService(): LanguageService
+    {
+        return $GLOBALS['LANG'];
+    }
 }
diff --git a/Classes/Tca/Registry.php b/Classes/Tca/Registry.php
index fed2855e..ae14ba28 100644
--- a/Classes/Tca/Registry.php
+++ b/Classes/Tca/Registry.php
@@ -15,6 +15,7 @@
 use B13\Container\Events\BeforeContainerConfigurationIsAppliedEvent;
 use Psr\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+use TYPO3\CMS\Core\Domain\RecordInterface;
 use TYPO3\CMS\Core\Imaging\IconProvider\BitmapIconProvider;
 use TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider;
 use TYPO3\CMS\Core\Imaging\IconRegistry;
@@ -114,6 +115,35 @@ public function getAllowedCTypesInColumn(string $cType, int $colPos): ?array
         return GeneralUtility::trimExplode(',', $contentDefenderConfiguration['allowedContentTypes'], true);
     }
 
+    public function recordIsAllowedInContainerColumn(RecordInterface $record): bool
+    {
+        $recordType = $record->getRecordType();
+        if ($record->has('tx_container_parent')) {
+            $containerRecord = $record->get('tx_container_parent');
+            if ($containerRecord instanceof RecordInterface) {
+                $containerRecordType = $containerRecord->getRecordType();
+                if ($this->isContainerElement($containerRecordType)) {
+                    return $this->isAllowedInColumn($recordType, (int)$record->get('colPos'), $containerRecordType);
+                }
+            }
+        }
+        return true;
+    }
+
+    public function isAllowedInColumn(string $cType, int $colPos, string $containerCType): bool
+    {
+        $contentDefenderConfiguration = $this->getContentDefenderConfiguration($cType, $colPos);
+        $disallowed = GeneralUtility::trimExplode(',', $contentDefenderConfiguration['disallowedContentTypes'] ?? '', true);
+        if (in_array($cType, $disallowed)) {
+            return false;
+        }
+        $allowed = $this->getAllowedCTypesInColumn($containerCType, $colPos);
+        if ($allowed === null) {
+            return true;
+        }
+        return in_array($cType, $allowed);
+    }
+
     public function getAllAvailableColumnsColPos(string $cType): array
     {
         $columns = $this->getAvailableColumns($cType);