diff --git a/src/types.ts b/src/types.ts
index 1be9f67..0694730 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -23,16 +23,16 @@ export const COLUMNS = {
   SHORT_DE: 64,
   SHORT_EN: 65,
   RECOMMENDED_AGE: 67,
-  CLASSIFICATION: 11, // Column L (index 11)
-  ITEM_AVAILABLE: 14,  // Column O (index 14)
+  CLASSIFICATION: 11,
+  ITEM_AVAILABLE: 14,
   MOQ: 27,
   UNITS_INNER: 31,
   UNITS_OUTER: 32,
+  ASIN: 33,
   INNER_W: 42,
   INNER_L: 43,
   INNER_H: 44,
   OUTER_W: 47,
   OUTER_L: 48,
-  OUTER_H: 49,
-  ASIN: 50
-};
+  OUTER_H: 49
+};
\ No newline at end of file