diff --git a/config/current.ver b/config/current.ver
index cb174d5..d2d61a7 100644
--- a/config/current.ver
+++ b/config/current.ver
@@ -1 +1 @@
-1.2.1
\ No newline at end of file
+1.2.2
\ No newline at end of file
diff --git a/public/assets/js/ui-editor.js b/public/assets/js/ui-editor.js
index bb5c67e..340f436 100644
--- a/public/assets/js/ui-editor.js
+++ b/public/assets/js/ui-editor.js
@@ -1060,6 +1060,16 @@ export function initEditor() {
     }
   }
 
+  async function confirmTemplateReferences(actionLabel) {
+    if (!current?.section?.is_template || !current?.id) return true;
+    const res = await apiAction('templates.references', { method: 'GET', data: { template_id: current.id } }).catch(() => ({}));
+    const refs = Array.isArray(res?.references) ? res.references : [];
+    if (!refs.length) return true;
+    const preview = refs.slice(0, 6).map(r => `${r.name || 'Template'} #${r.id}`).join(', ');
+    const more = refs.length > 6 ? ` und ${refs.length - 6} weitere` : '';
+    return confirm(`Dieses Template wird in ${refs.length} anderen Template(s) verwendet (${preview}${more}). ${actionLabel} trotzdem?`);
+  }
+
   // Buttons
   btnSave      && (btnSave.onclick      = save);
   btnClear     && (btnClear.onclick     = clearEditor);
@@ -1086,6 +1096,8 @@ export function initEditor() {
     if (!current?.id) return;
     if (!currentVersionMeta || Number(currentVersionMeta.is_active) !== 1) return;
     try {
+      const okRefs = await confirmTemplateReferences('Deaktivieren');
+      if (!okRefs) return;
       const res = await apiAction('content_versions.deactivate', { method: 'POST', data: { content_id: current.id } });
       if (!res?.ok) throw new Error(res?.error || 'Deaktivieren fehlgeschlagen');
       await loadVersionsForCurrent({ keepSelection: true, preferredId: currentVersionId });
diff --git a/public/assets/js/ui-list.js b/public/assets/js/ui-list.js
index 69108f0..378bf11 100644
--- a/public/assets/js/ui-list.js
+++ b/public/assets/js/ui-list.js
@@ -88,6 +88,21 @@ async function openTemplateManager(item, section) {
   let versions = [];
   let activeId = 0;
 
+  const fetchTemplateReferences = async () => {
+    if (!section?.is_template) return [];
+    const res = await apiAction('templates.references', { method: 'GET', data: { template_id: item.id } }).catch(() => ({}));
+    return Array.isArray(res?.references) ? res.references : [];
+  };
+
+  const confirmTemplateReferences = async (actionLabel) => {
+    if (!section?.is_template) return true;
+    const refs = await fetchTemplateReferences();
+    if (!refs.length) return true;
+    const preview = refs.slice(0, 6).map(r => `${r.name || 'Template'} #${r.id}`).join(', ');
+    const more = refs.length > 6 ? ` und ${refs.length - 6} weitere` : '';
+    return confirm(`Dieses Template wird in ${refs.length} anderen Template(s) verwendet (${preview}${more}). ${actionLabel} trotzdem?`);
+  };
+
   const updateDeleteState = () => {
     const hasActive = !!activeId;
     if (btnDelete) btnDelete.disabled = hasActive;
@@ -176,6 +191,10 @@ async function openTemplateManager(item, section) {
 
   const onDeleteItem = async () => {
     if (activeId) return;
+    if (section?.is_template) {
+      const ok = await confirmTemplateReferences('Löschen');
+      if (!ok) return;
+    }
     if (!delDlg || !delForm) {
       const res = await apiAction('content.delete', { method: 'POST', data: { id: item.id, section_id: section.id } });
       toast(res && res.ok ? 'Gelöscht' : 'Löschen fehlgeschlagen', !!(res && res.ok), { duration: 3000 });
@@ -193,6 +212,10 @@ async function openTemplateManager(item, section) {
     if (delCancel) delCancel.onclick = () => { delDlg.close(); cleanupDelete(); };
     delForm.onsubmit = async (ev) => {
       ev.preventDefault();
+      if (section?.is_template) {
+        const ok = await confirmTemplateReferences('Löschen');
+        if (!ok) return;
+      }
       const res = await apiAction('content.delete', { method: 'POST', data: { id: item.id, section_id: section.id } });
       delDlg.close();
       cleanupDelete();
@@ -223,6 +246,10 @@ async function openTemplateManager(item, section) {
       return;
     }
     if (target.dataset.versionDeactivate !== undefined) {
+      if (section?.is_template) {
+        const ok = await confirmTemplateReferences('Deaktivieren');
+        if (!ok) return;
+      }
       const res = await apiAction('content_versions.deactivate', { method: 'POST', data: { content_id: item.id } });
       toast(res && res.ok ? 'Aktive Version deaktiviert' : 'Deaktivieren fehlgeschlagen', !!(res && res.ok));
       await loadVersions();
diff --git a/src/ApiKernel.php b/src/ApiKernel.php
index c3378c3..fb59c45 100644
--- a/src/ApiKernel.php
+++ b/src/ApiKernel.php
@@ -2204,6 +2204,104 @@ class ApiKernel
         ]);
     }
 
+    private function handleTemplateReferences(): void
+    {
+        $auth = $this->requireAuth();
+        $customerId = (int)($auth['customer_id'] ?? 0);
+        if ($customerId <= 0) {
+            $this->fail('Customer context missing', null, 500);
+        }
+
+        $templateId = (int)$this->val($this->in, ['template_id', 'id', 'template'], 0);
+        if ($templateId <= 0) {
+            $this->fail('template_id required', null, 422);
+        }
+
+        $references = $this->findTemplateReferences($customerId, $templateId);
+
+        $this->respond([
+            'ok' => true,
+            'template_id' => $templateId,
+            'count' => count($references),
+            'references' => $references,
+        ]);
+    }
+
+    private function findTemplateReferences(int $customerId, int $templateId): array
+    {
+        $out = [];
+        $matches = function (?string $html) use ($templateId): bool {
+            if (!$html) return false;
+            $id = preg_quote((string)$templateId, '/');
+            $typePattern = '/data-ref-type\s*=\s*(["\"])template\1/i';
+            $idPattern = '/data-ref-id\s*=\s*(["\"])' . $id . '\1/i';
+            return (bool)(preg_match($typePattern, $html) && preg_match($idPattern, $html));
+        };
+
+        if ($this->useUnifiedContent()) {
+            $section = $this->ensureEmailtemplateSection($customerId);
+            if (!$section) return [];
+
+            $itemsTable = $this->contentItemsTable();
+            if (!$this->tableExists($itemsTable)) return [];
+            $itemCols = $this->resolveContentItemColumns($itemsTable);
+            $htmlCol = $itemCols['html'];
+
+            $versionsTable = $this->contentVersionsTable();
+            $versionCols = ($this->tableExists($versionsTable)) ? $this->resolveContentVersionColumns($versionsTable) : null;
+            $versionHtmlCol = $versionCols['html'] ?? null;
+            $versionActiveCol = $versionCols['is_active'] ?? null;
+
+            $select = "i.`id` AS id, i.`name` AS name";
+            if ($htmlCol) $select .= ", i.`$htmlCol` AS item_html";
+            $join = '';
+            if ($versionHtmlCol && $versionActiveCol) {
+                $select .= ", v.`$versionHtmlCol` AS version_html";
+                $join = "LEFT JOIN `$versionsTable` v ON v.`content_id` = i.`id` AND v.`$versionActiveCol` = 1";
+            }
+            $sql = "SELECT $select FROM `$itemsTable` i $join WHERE i.`customer_id` = :cid AND i.`section_id` = :sid AND i.`id` <> :id";
+            $stmt = $this->pdo->prepare($sql);
+            $stmt->execute([':cid' => $customerId, ':sid' => (int)$section['id'], ':id' => $templateId]);
+            $rows = $stmt->fetchAll() ?: [];
+
+            foreach ($rows as $row) {
+                $html = (string)($row['version_html'] ?? $row['item_html'] ?? '');
+                if ($matches($html)) {
+                    $out[] = [
+                        'id' => (int)($row['id'] ?? 0),
+                        'name' => (string)($row['name'] ?? ''),
+                    ];
+                }
+            }
+            return $out;
+        }
+
+        $table = $this->tableMap['templates'] ?? null;
+        if (!$table || !$this->tableExists($table)) return [];
+
+        [$idCol, $allCols] = $this->resolveIdCol('templates');
+        $htmlCol = $this->firstExisting($allCols, ['html', 'body', 'markup', 'content']);
+        if (!$htmlCol) return [];
+        $nameCol = $this->conf['columns']['templates']['name'] ?? ($this->firstExisting($allCols, ['name']) ?: $idCol);
+
+        [$tw, $tp] = $this->tenantWhere(['customer_id' => $customerId]);
+        $sql = "SELECT `$idCol` AS id, `$nameCol` AS name, `$htmlCol` AS html FROM `$table` WHERE `$idCol` <> :id" . $tw;
+        $stmt = $this->pdo->prepare($sql);
+        $stmt->bindValue(':id', $templateId, PDO::PARAM_INT);
+        foreach ($tp as $k => $v) $stmt->bindValue($k, $v);
+        $stmt->execute();
+        $rows = $stmt->fetchAll() ?: [];
+        foreach ($rows as $row) {
+            if ($matches((string)($row['html'] ?? ''))) {
+                $out[] = [
+                    'id' => (int)($row['id'] ?? 0),
+                    'name' => (string)($row['name'] ?? ''),
+                ];
+            }
+        }
+        return $out;
+    }
+
     private function handleExternalRender(): void
     {
         $token = trim((string)($this->in['token'] ?? ''));
@@ -2536,6 +2634,9 @@ class ApiKernel
                 case 'templates.test_send':
                     $this->handleTemplateTestSend();
                     break;
+                case 'templates.references':
+                    $this->handleTemplateReferences();
+                    break;
                 case 'sections_config.reorder':
                     $this->handleSectionsConfigReorder();
                     break;