diff --git a/src/main/java/com/spring/modules/part/service/impl/RecipeManagementServiceImpl.java b/src/main/java/com/spring/modules/part/service/impl/RecipeManagementServiceImpl.java
index 8e53abe2..2f5d9a28 100644
--- a/src/main/java/com/spring/modules/part/service/impl/RecipeManagementServiceImpl.java
+++ b/src/main/java/com/spring/modules/part/service/impl/RecipeManagementServiceImpl.java
@@ -86,7 +86,7 @@ public class RecipeManagementServiceImpl extends ServiceImpl<RecipeManagementMap
         recipeIfsItem.setLineItemNo(data.getLineItemNo().toString());
         recipeIfsItem.setLineSequence(data.getLineSequence().toString());
         recipeIfsItem.setNoteText(data.getNoteText());
-        recipeIfsItem.setOperationNo(data.getOperationNo().toString());
+        recipeIfsItem.setOperationNo(data.getOperationNo() == null ? "" : data.getOperationNo().toString());
         recipeIfsItem.setConsumptionItem(data.getConsumptionItem());
         recipeIfsItem.setPartsByWeight(data.getPartsByWeight().toString());
         recipeIfsItem.setQtyUom(data.getQtyUom().toString());