diff --git a/src/app/components/UserDetailModal.tsx b/src/app/components/UserDetailModal.tsx
index 9843453..8270c62 100644
--- a/src/app/components/UserDetailModal.tsx
+++ b/src/app/components/UserDetailModal.tsx
@@ -49,8 +49,8 @@ export default function UserDetailModal({ isOpen, onClose, userId, onUserUpdated
   // Contract preview state (lazy-loaded, per contract type)
   const [activePreviewTab, setActivePreviewTab] = useState<'contract' | 'gdpr'>('contract')
   const [previewState, setPreviewState] = useState({
-    contract: { loading: false, html: null as string | null, error: null as string | null },
-    gdpr: { loading: false, html: null as string | null, error: null as string | null },
+    contract: { loading: false, html: null as string | null, error: null as string | null, warning: null as string | null },
+    gdpr: { loading: false, html: null as string | null, error: null as string | null, warning: null as string | null },
   })
 
   useEffect(() => {
@@ -63,8 +63,8 @@ export default function UserDetailModal({ isOpen, onClose, userId, onUserUpdated
     if (!isOpen) return
     setActivePreviewTab('contract')
     setPreviewState({
-      contract: { loading: false, html: null, error: null },
-      gdpr: { loading: false, html: null, error: null }
+      contract: { loading: false, html: null, error: null, warning: null },
+      gdpr: { loading: false, html: null, error: null, warning: null }
     })
   }, [isOpen, userId])
 
@@ -153,19 +153,19 @@ export default function UserDetailModal({ isOpen, onClose, userId, onUserUpdated
     if (!userId || !token || !userDetails) return
     setPreviewState((prev) => ({
       ...prev,
-      [contractType]: { ...prev[contractType], loading: true, error: null }
+      [contractType]: { ...prev[contractType], loading: true, error: null, warning: null }
     }))
     try {
-      const html = await AdminAPI.getContractPreviewHtml(token, String(userId), userDetails.user.user_type, contractType)
+      const result = await AdminAPI.getContractPreviewHtml(token, String(userId), userDetails.user.user_type, contractType)
       setPreviewState((prev) => ({
         ...prev,
-        [contractType]: { loading: false, html, error: null }
+        [contractType]: { loading: false, html: result.html, error: null, warning: result.warning || null }
       }))
     } catch (e: any) {
       console.error('UserDetailModal.loadContractPreview error:', e)
       setPreviewState((prev) => ({
         ...prev,
-        [contractType]: { loading: false, html: null, error: e?.message || 'Failed to load contract preview' }
+        [contractType]: { loading: false, html: null, error: e?.message || 'Failed to load contract preview', warning: e?.warning || null }
       }))
     }
   }
@@ -459,6 +459,11 @@ export default function UserDetailModal({ isOpen, onClose, userId, onUserUpdated
                             </div>
                           </div>
                           <div className="px-6 py-5">
+                            {previewState[activePreviewTab].warning && (
+                              <div className="rounded-md border border-amber-200 bg-amber-50 px-4 py-3 text-sm text-amber-800 mb-4">
+                                {previewState[activePreviewTab].warning}
+                              </div>
+                            )}
                             {previewState[activePreviewTab].error && (
                               <div className="rounded-md border border-red-200 bg-red-50 px-4 py-3 text-sm text-red-700 mb-4">
                                 {previewState[activePreviewTab].error}
diff --git a/src/app/utils/api.ts b/src/app/utils/api.ts
index 1754142..48d4902 100644
--- a/src/app/utils/api.ts
+++ b/src/app/utils/api.ts
@@ -449,12 +449,17 @@ export class AdminAPI {
     const qsStr = qs.toString()
     if (qsStr) endpoint += `?${qsStr}`
     const response = await ApiClient.get(endpoint, token)
+    const warningHeader = response.headers.get('x-contract-preview-warning')
     if (!response.ok) {
       const error = await response.json().catch(() => ({ message: 'Failed to fetch contract preview' }))
-      throw new Error(error.message || 'Failed to fetch contract preview')
+      const err: any = new Error(error.message || 'Failed to fetch contract preview')
+      if (warningHeader) err.warning = warningHeader
+      if (error?.warning) err.warning = error.warning
+      throw err
     }
     // Return HTML string
-    return response.text()
+    const html = await response.text()
+    return { html, warning: warningHeader }
   }
 }