diff --git a/services/dataProcessor.ts b/services/dataProcessor.ts
index 71a047c..8b8a133 100644
--- a/services/dataProcessor.ts
+++ b/services/dataProcessor.ts
@@ -2582,18 +2582,22 @@ export const processBuyBoxExcel = async (fileOrBuffer: File | ArrayBuffer): Prom
                 continue;
             }
 
-            // Detect reason column from header row keywords
-            let reasonColIdx = -1;
-            for (let r = 0; r < Math.min(rows.length, 15); r++) {
-                const idx = (rows[r] || []).findIndex((cell: any) => {
-                    const s = String(cell || '').toUpperCase();
-                    return s.includes('ISSUE') || s.includes('REASON') || s.includes('STATUS') ||
-                           s.includes('MOTIVO') || s.includes('CAUSA') || s.includes('ESTADO') ||
-                           s.includes('COMMENT') || s.includes('OBSERV') || s.includes('SITUAC') ||
-                           s.includes('LBB') || s.includes('PROBLEMA') || s.includes('NOTE') ||
-                           s.includes('JUSTIF') || s.includes('DETALL');
-                });
-                if (idx !== -1) { reasonColIdx = idx; break; }
+            // Known reason column overrides (confirmed by user): FR=S(18), UK=J(9), DE=N(13)
+            const REASON_COL_OVERRIDE: Record<string, number> = { FR: 18, UK: 9, DE: 13 };
+            let reasonColIdx = REASON_COL_OVERRIDE[country] ?? -1;
+
+            // For countries without a hardcoded override, detect from header keywords
+            if (reasonColIdx === -1) {
+                for (let r = 0; r < Math.min(rows.length, 15); r++) {
+                    const idx = (rows[r] || []).findIndex((cell: any) => {
+                        const s = String(cell || '').toUpperCase();
+                        return s.includes('ISSUE') || s.includes('REASON') ||
+                               s.includes('MOTIVO') || s.includes('CAUSA') || s.includes('ESTADO') ||
+                               s.includes('COMMENT') || s.includes('OBSERV') || s.includes('SITUAC') ||
+                               s.includes('LBB') || s.includes('PROBLEMA') || s.includes('JUSTIF') || s.includes('DETALL');
+                    });
+                    if (idx !== -1) { reasonColIdx = idx; break; }
+                }
             }
 
             console.log(`[BuyBox] Sheet "${sheetName}" → ${country}: asinCol=${asinColIdx} (${maxHits} ASINs found), reasonCol=${reasonColIdx}`);