diff --git a/src/App.tsx b/src/App.tsx
index fe6a3fe..348338d 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -180,7 +180,6 @@ export default function App() {
             [COLUMNS.ITEM_TO_LOGISTIC]: 'Item to Logistic',
             [COLUMNS.ANNA_CHECK]: 'Anna Check',
             [COLUMNS.ANNA_NOTE]: 'Anna Note',
-            [COLUMNS.CPNP_NO]: 'CPNP No.',
           };
           Object.entries(VIRTUAL_COLS).forEach(([idxStr, name]) => {
             const idx = Number(idxStr);
@@ -207,7 +206,6 @@ export default function App() {
             resolvedCols.VALIDATED_NOTE,
             resolvedCols.PRODUCT_TYPE,
             resolvedCols.ITEM_TO_LOGISTIC,
-            resolvedCols.CPNP_NO
           ]);
           
           headers.forEach((h: any, i: number) => {
diff --git a/src/types.ts b/src/types.ts
index 909570c..dc9b399 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -82,7 +82,7 @@ export const COLUMN_PATTERNS: Record<keyof typeof COLUMNS, string[]> = {
   ITEM_TO_LOGISTIC: ['item', 'logistic'],
   ANNA_CHECK: ['anna', 'check'],
   ANNA_NOTE: ['anna', 'note'],
-  CPNP_NO: [],
+  CPNP_NO: ['cpnp'],
   // Virtual/Extra columns stay hardcoded and are NOT auto-detected from headers
   // to prevent internal data from being shifted or overwritten by Excel column shifts.
 };