diff --git a/src/main/java/com/spring/modules/quote/service/impl/QuoteServiceImpl.java b/src/main/java/com/spring/modules/quote/service/impl/QuoteServiceImpl.java
index 669d279f..027bd83e 100644
--- a/src/main/java/com/spring/modules/quote/service/impl/QuoteServiceImpl.java
+++ b/src/main/java/com/spring/modules/quote/service/impl/QuoteServiceImpl.java
@@ -463,7 +463,8 @@ public class QuoteServiceImpl extends ServiceImpl<QuoteMapper, Quote> implements
                     BigDecimal v = (BigDecimal) getPropertyValue(defaultQuoteDetail, nodeDetail.getPlmField());
                     fieldValue = v == null ? "0" : v.toString();
                 } else {
-                    fieldValue = (String) getPropertyValue(defaultQuoteDetail, nodeDetail.getPlmField());
+                    Object value = getPropertyValue(defaultQuoteDetail, nodeDetail.getPlmField());
+                    fieldValue = value == null ? "" : value.toString();
                 }
             }
 
@@ -730,7 +731,8 @@ public class QuoteServiceImpl extends ServiceImpl<QuoteMapper, Quote> implements
                     BigDecimal v = (BigDecimal) getPropertyValue(defaultQuoteDetail, nodeDetail.getPlmField());
                     fieldValue = v == null ? "0" : v.toString();
                 } else {
-                    fieldValue = (String) getPropertyValue(defaultQuoteDetail, nodeDetail.getPlmField());
+                    Object value = getPropertyValue(defaultQuoteDetail, nodeDetail.getPlmField());
+                    fieldValue = value == null ? "" : value.toString();
                 }
             }