diff --git a/backend/src/tools/koepi/routes.js b/backend/src/tools/koepi/routes.js
index 61d61a0..382e790 100644
--- a/backend/src/tools/koepi/routes.js
+++ b/backend/src/tools/koepi/routes.js
@@ -116,11 +116,35 @@ async function fetchOffersViaApi() {
   }
   const json = await res.json();
 
-  // Diagnose: rohe Struktur des ersten Treffers loggen, damit sich Feldnamen
-  // (z.B. für eine echte Store-Adresse) im Zweifel nachträglich anpassen lassen
   console.log('🍺 KöPi API: totalResults=', json.totalResults, '| results.length=', json.results?.length);
   if (json.results?.[0]) {
-    console.log('🍺 KöPi API Rohdaten (erster Treffer):', JSON.stringify(json.results[0]).slice(0, 1500));
+    console.log('🍺 KöPi API Rohdaten (erster Treffer, VOLLSTÄNDIG):', JSON.stringify(json.results[0]));
+  }
+
+  // Reine Diagnose (rein informativ, wirft bei Fehlschlag keinen Fehler für den
+  // Hauptablauf): probiert, ob der leafletflights-Endpoint zusätzliche
+  // Store-/Adressinfos zu den gefundenen Prospekt-Kampagnen liefert
+  try {
+    const flightIds = [...new Set((json.results || []).map(r => r.leafletFlightId).filter(Boolean))];
+    if (flightIds.length) {
+      const flightUrl = `https://api.marktguru.de/api/v1/leafletflights?as=mobile&limit=8&zipCode=${MG_ZIP}`;
+      const flightRes = await fetch(flightUrl, {
+        headers: {
+          'x-clientkey': MARKTGURU_CLIENT_KEY,
+          'x-apikey': MARKTGURU_API_KEY,
+          'Accept': 'application/json',
+        },
+      });
+      console.log('🍺 KöPi leafletflights-Diagnose: HTTP', flightRes.status);
+      if (flightRes.ok) {
+        const flightJson = await flightRes.json();
+        console.log('🍺 KöPi leafletflights-Diagnose Rohdaten (VOLLSTÄNDIG):', JSON.stringify(flightJson).slice(0, 4000));
+      } else {
+        console.log('🍺 KöPi leafletflights-Diagnose Body:', (await flightRes.text().catch(()=>'')).slice(0, 500));
+      }
+    }
+  } catch (diagErr) {
+    console.log('🍺 KöPi leafletflights-Diagnose fehlgeschlagen (ignoriert):', diagErr.message);
   }
 
   return (json.results || []).map(r => {
@@ -130,18 +154,21 @@ async function fetchOffersViaApi() {
     const oldPriceNum = typeof r.oldPrice === 'number' ? r.oldPrice : parseFloat(r.oldPrice);
     const realAddress = [store.street, store.streetNumber].filter(Boolean).join(' ').trim()
       || store.address || advertiser.address || '';
+    const validity0 = r.validityDates?.[0] || {};
     return {
       name: r.description || r.title || advertiser.name || '',
       brand: r.brand?.name || '',
       price: Number.isFinite(priceNum) ? `€ ${priceNum.toFixed(2).replace('.', ',')}` : (r.price || ''),
       oldPrice: Number.isFinite(oldPriceNum) ? `€ ${oldPriceNum.toFixed(2).replace('.', ',')}` : (r.oldPrice || ''),
       retailer: advertiser.name || '',
-      dateRange: r.validFrom && r.validUntil ? `${formatIsoDate(r.validFrom)} - ${formatIsoDate(r.validUntil)}` : formatIsoDate(r.validUntil),
+      dateRange: validity0.from && validity0.to ? `${formatIsoDate(validity0.from)} - ${formatIsoDate(validity0.to)}` : formatIsoDate(validity0.to),
       validity: '',
       description: r.description || '',
       badge: '',
       address: '',
       realAddress,
+      leafletFlightId: r.leafletFlightId || null,
+      offerId: r.id || null,
       image: r.image?.url || r.images?.[0]?.url || null,
     };
   });