diff --git a/RFXtoRP_HsrPrepa_CarrierUpdated.ftl b/RFXtoRP_HsrPrepa_CarrierUpdated.ftl
index 40a50a4..df66203 100644
--- a/RFXtoRP_HsrPrepa_CarrierUpdated.ftl
+++ b/RFXtoRP_HsrPrepa_CarrierUpdated.ftl
@@ -7,7 +7,7 @@
   <#if preparation_line.preparation_order_originator_reference?? && preparation_line.preparation_order_originator_reference!="">
     <#assign OrderOriginReference = preparation_line.preparation_order_originator_reference?trim?json_string>
   <#else>
-    <#assign OrderOriginReference = "${preparation_line.pro_physical_depot_code?trim?json_string}${preparationOrder.activity_code?trim?json_string}${preparation_line.pro_originator_code?trim?json_string}${preparation_line.pro_year}${preparation_line.pro_number}">
+    <#assign OrderOriginReference = "O${preparation_line.pro_physical_depot_code?trim?json_string}${preparationOrder.activity_code?trim?json_string}${preparation_line.pro_originator_code?trim?json_string}${preparation_line.pro_year}${preparation_line.pro_number}">
   </#if>
 
         <#if refIDHmap_local?size != 0 >
diff --git a/RFXtoRP_HsrPrepa_OrderCarrierUpdated.ftl b/RFXtoRP_HsrPrepa_OrderCarrierUpdated.ftl
index a8405f4..35bfc9c 100644
--- a/RFXtoRP_HsrPrepa_OrderCarrierUpdated.ftl
+++ b/RFXtoRP_HsrPrepa_OrderCarrierUpdated.ftl
@@ -7,7 +7,7 @@
    <#if preparation_line.preparation_order_originator_reference?? && preparation_line.preparation_order_originator_reference!="">
     <#assign OrderOriginReference = preparation_line.preparation_order_originator_reference?trim?json_string>
   <#else>
-    <#assign OrderOriginReference = "${preparation_line.pro_physical_depot_code?trim?json_string}${preparationOrder.activity_code?trim?json_string}${preparation_line.pro_originator_code?trim?json_string}${preparation_line.pro_year}${preparation_line.pro_number}">
+    <#assign OrderOriginReference = "O${preparation_line.pro_physical_depot_code?trim?json_string}${preparationOrder.activity_code?trim?json_string}${preparation_line.pro_originator_code?trim?json_string}${preparation_line.pro_year}${preparation_line.pro_number}">
   </#if>
 
       <#if refIDHmap_local?size != 0 >