diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java b/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java
index 828852ab6..4d936e2c1 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java
@@ -100,6 +100,8 @@ public abstract class OrderElement extends BaseEntity implements
 
     private TaskSource taskSource;
 
+    private String externalCode;
+
     public SchedulingState getSchedulingState() {
         if (schedulingState == null) {
             schedulingState = SchedulingState.createSchedulingState(
@@ -931,4 +933,12 @@ public abstract class OrderElement extends BaseEntity implements
         return this;
     }
 
+    public void setExternalCode(String externalCode) {
+        this.externalCode = externalCode;
+    }
+
+    public String getExternalCode() {
+        return externalCode;
+    }
+
 }
diff --git a/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml b/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml
index 5319b277a..f38116334 100644
--- a/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml
+++ b/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml
@@ -51,6 +51,8 @@
 
         <one-to-one name="taskSource" class="TaskSource" access="field" property-ref="orderElement"/>
 
+        <property name="externalCode" access="field" />
+
         <joined-subclass name="OrderLineGroup">
             <key column="ORDERELEMENTID"></key>
             <list name="children" access="field" cascade="all">