diff --git a/src/app/api/products/search-sheets/route.ts b/src/app/api/products/search-sheets/route.ts
index d54ae21..8b7916d 100644
--- a/src/app/api/products/search-sheets/route.ts
+++ b/src/app/api/products/search-sheets/route.ts
@@ -32,6 +32,10 @@ export async function GET(req: NextRequest) {
       s => s.properties.title,
     )
 
+    // Collecte tous les matches et retourne le plus spécifique (UGS la plus longue)
+    // pour éviter que "26618" matche avant "26618-D" dans le nom de fichier
+    let bestMatch: { shopifyId: string; title: string; ugsLength: number } | null = null
+
     for (const tab of tabs) {
       const range = encodeURIComponent(`${tab}!A2:D`)
       const res = await fetch(
@@ -53,13 +57,15 @@ export async function GET(req: NextRequest) {
         const wordBoundary = new RegExp(`(^|[^a-z0-9])${ugsLower.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}([^a-z0-9]|$)`)
         const isMatch = ugs && shopifyId && wordBoundary.test(refLower)
 
-        if (isMatch) {
-          const title = (row[3] ?? '').trim()  // col D = Nom
-          return NextResponse.json({ found: true, shopifyId, title })
+        if (isMatch && (!bestMatch || ugs.length > bestMatch.ugsLength)) {
+          bestMatch = { shopifyId, title: (row[3] ?? '').trim(), ugsLength: ugs.length }
         }
       }
     }
 
+    if (bestMatch) {
+      return NextResponse.json({ found: true, shopifyId: bestMatch.shopifyId, title: bestMatch.title })
+    }
     return NextResponse.json({ found: false })
   } catch (err) {
     const message = err instanceof Error ? err.message : 'Erreur'