diff --git a/src/components/QuickQuote/index.jsx b/src/components/QuickQuote/index.jsx
index 42ddd47..b32d4ef 100644
--- a/src/components/QuickQuote/index.jsx
+++ b/src/components/QuickQuote/index.jsx
@@ -185,7 +185,7 @@ const QuickQuoteEvent = props => {
               sProductClassifyId: sId,
             }));
             const slaveDataReturn = onDataChange(name, sFieldName, changeValue, item.sId, dropDownData, true);
-            sBackProcessData = [...sBackProcessData, ...slaveDataReturn.sBackProcessData.filter(item => item.sProductClassifyId === sId)];
+            sBackProcessData = [...sBackProcessData, ...(slaveDataReturn?.sBackProcessData?.filter(item => item.sProductClassifyId === sId) || [])];
           });
           return {
             ...item,