diff --git a/services/dataProcessor.ts b/services/dataProcessor.ts
index 949d588..78af947 100644
--- a/services/dataProcessor.ts
+++ b/services/dataProcessor.ts
@@ -2577,11 +2577,19 @@ export const processBuyBoxExcel = async (fileOrBuffer: File | ArrayBuffer): Prom
                 }
             }
 
-            const asinIdx = headers.findIndex(h => {
-                const s = String(h || '').toUpperCase().trim();
-                return s === 'ASIN' || s.includes('AMAZON ASIN') || s.includes('CHILD ASIN') || s.includes('IDENTIFIER') || s.includes('PRODUCT ID') || s.includes('SKU');
+            let finalAsinIdx = headers.findIndex(h => {
+                const s = String(h || '').toUpperCase().replace(/[^A-Z]/g, '');
+                return s === 'ASIN' || s.includes('AMAZONASIN') || s.includes('CHILDASIN');
             });
-            let finalAsinIdx = asinIdx !== -1 ? asinIdx : 1; // Default to Col B if not found
+
+            if (finalAsinIdx === -1) {
+                finalAsinIdx = headers.findIndex(h => {
+                    const s = String(h || '').toUpperCase().replace(/[^A-Z]/g, '');
+                    return s.includes('IDENTIFIER') || s.includes('PRODUCTID') || s.includes('SKU');
+                });
+            }
+
+            if (finalAsinIdx === -1) finalAsinIdx = 1; // Default to Col B if not found
 
             // Dynamically find the "Issue Type" or "Reason" column
             let reasonIdx = headers.findIndex(h => {