diff --git a/public/js/api.js b/public/js/api.js
index 5c2de9e..bafe57d 100644
--- a/public/js/api.js
+++ b/public/js/api.js
@@ -269,7 +269,9 @@ class NIS2API {
     importAssets(data) { return this.post('/assets/import', data); }            // P2 import CMDB/CSV
     getControlsMonitoring() { return this.get('/audit/controlsMonitoring'); }
     getAcnRequirements() { return this.get('/audit/acnRequirements'); }                                  // requisiti ACN per org
-    updateAcnRequirement(id, status, note) { return this.put(`/audit/acnRequirements/${id}`, { status, evidence_note: note }); }    // P1 continuous control monitoring (JWT)
+    updateAcnRequirement(id, status, note) { return this.put(`/audit/acnRequirements/${id}`, { status, evidence_note: note }); }
+    sendSupplierQuestionnaire(id, email) { return this.post(`/supply-chain/${id}/send-questionnaire`, email ? { email } : {}); }  // self-assessment fornitore (link esterno)
+    getSupplierQuestionnaireStatus(id) { return this.get(`/supply-chain/${id}/questionnaire-status`); }    // P1 continuous control monitoring (JWT)
 
     // ═══════════════════════════════════════════════════════════════════
     // Audit
diff --git a/public/supply-chain.html b/public/supply-chain.html
index 450b95d..92421a3 100644
--- a/public/supply-chain.html
+++ b/public/supply-chain.html
@@ -661,9 +661,12 @@
                                 <button class="btn btn-sm btn-ghost" onclick="openEditModal(${s.id})" title="Modifica">
                                     <svg viewBox="0 0 20 20" fill="currentColor" width="14" height="14"><path d="M13.586 3.586a2 2 0 112.828 2.828l-.793.793-2.828-2.828.793-.793zM11.379 5.793L3 14.172V17h2.828l8.38-8.379-2.83-2.828z"/></svg>
                                 </button>
-                                <button class="btn btn-sm btn-primary" onclick="openAssessmentModal(${s.id})" title="Valuta">
+                                <button class="btn btn-sm btn-primary" onclick="openAssessmentModal(${s.id})" title="Valuta (interna)">
                                     <svg viewBox="0 0 20 20" fill="currentColor" width="14" height="14"><path d="M9 2a1 1 0 000 2h2a1 1 0 100-2H9z"/><path fill-rule="evenodd" d="M4 5a2 2 0 012-2 3 3 0 003 3h2a3 3 0 003-3 2 2 0 012 2v11a2 2 0 01-2 2H6a2 2 0 01-2-2V5zm9.707 5.707a1 1 0 00-1.414-1.414L9 12.586l-1.293-1.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clip-rule="evenodd"/></svg>
                                 </button>
+                                <button class="btn btn-sm btn-ghost" onclick="sendSupplierQuestionnaire(${s.id}, '${escapeHtml((s.name||'').replace(/'/g,"\\'"))}')" title="Invia questionario al fornitore">
+                                    <svg viewBox="0 0 20 20" fill="currentColor" width="14" height="14"><path d="M2.003 5.884L10 9.882l7.997-3.998A2 2 0 0016 4H4a2 2 0 00-1.997 1.884z"/><path d="M18 8.118l-8 4-8-4V14a2 2 0 002 2h12a2 2 0 002-2V8.118z"/></svg>
+                                </button>
                             </div>
                         </td>
                     </tr>`;
@@ -1130,6 +1133,29 @@
             }
         }
 
+        // ── Invio questionario self-assessment al fornitore (link esterno) ──
+        async function sendSupplierQuestionnaire(supplierId, supplierName) {
+            const def = '';
+            const email = prompt('Invia il questionario di sicurezza a "' + (supplierName || 'fornitore') +
+                '".\nEmail del fornitore (lascia vuoto per usare il contatto in anagrafica):', def);
+            if (email === null) return; // annullato
+            try {
+                const result = await api.sendSupplierQuestionnaire(supplierId, email.trim() || null);
+                if (result.success) {
+                    const link = result.data?.link;
+                    showNotification('Questionario inviato' + (result.data?.sent_to ? ' a ' + result.data.sent_to : '') + '.', 'success');
+                    if (link) {
+                        // mostra anche il link generato (utile se l'email non parte / per invio manuale)
+                        prompt('Link del questionario (valido 30 giorni) — puoi inoltrarlo manualmente:', link);
+                    }
+                } else {
+                    showNotification(result.message || 'Errore nell\'invio del questionario.', 'error');
+                }
+            } catch (e) {
+                showNotification('Errore di connessione.', 'error');
+            }
+        }
+
         // ── Init ────────────────────────────────────────────────
         loadSuppliers();
     </script>