diff --git a/src/controllers/protection.js b/src/controllers/protection.js
index 02d0bad..81cebf6 100644
--- a/src/controllers/protection.js
+++ b/src/controllers/protection.js
@@ -968,6 +968,13 @@ export function checkProtectionLockedRangeList(rangeList, sheetIndex){
         return true;
     }
 
+    //EPM-BUDGET-START
+    let cell = sheetFile.data[rangeList[0].row[0]][rangeList[0].column[0]]
+    if(cell&& !cell.lo){
+        return true;
+    }
+    //EPM-BUDGET-END
+
     const _locale = locale();
     const local_protection = _locale.protection;