diff --git a/src/app/api/products/search-sheets/route.ts b/src/app/api/products/search-sheets/route.ts
index 8ddba3e..3f96fbc 100644
--- a/src/app/api/products/search-sheets/route.ts
+++ b/src/app/api/products/search-sheets/route.ts
@@ -46,7 +46,15 @@ export async function GET(req: NextRequest) {
         // col C = UGS (index 2 car on commence à A)
         const ugs = (row[2] ?? '').trim()
 
-        if (ugs.toLowerCase() === ref.toLowerCase() && shopifyId) {
+        // Match exact OU le ref commence par l'UGS suivi d'un séparateur
+        // ex: "REF-1042-dessus" → UGS "REF-1042" ✓ ; "REF-1042 2" → "REF-1042" ✓
+        const refLower = ref.toLowerCase()
+        const ugsLower = ugs.toLowerCase()
+        const isMatch = ugs &&
+          (refLower === ugsLower ||
+           (refLower.startsWith(ugsLower) && /^[-_ ]/.test(ref.slice(ugs.length))))
+
+        if (isMatch && shopifyId) {
           const title = (row[3] ?? '').trim()  // col D = Nom
           return NextResponse.json({ found: true, shopifyId, title })
         }