diff --git a/RFXtoRP_HsrPro.ftl b/RFXtoRP_HsrPro.ftl
index caa5990..cfa3721 100644
--- a/RFXtoRP_HsrPro.ftl
+++ b/RFXtoRP_HsrPro.ftl
@@ -46,12 +46,18 @@
         <#assign dataRfx = JsonUtil.decodeBase64(cloudEventMsg.data) />
       <#assign preparation_order = JsonUtil.jsonToMap(dataRfx)>
        [
-         {
+        {
+        <#if  preparation_order.originator_reference?? && preparation_order.originator_reference!="">
+          {
           <#assign apiReflexPlatformID = ApiReflexPlatformID.ExecutionflowCancelled>
           "apiReflexPlatformID" :  "${apiReflexPlatformID}",
           "datas" :
           <#include "RFXtoRP_HsrPro_ExecutionflowCancelled.ftl">
-         }
+          }
+        <#else>
+          <#stop "PRO reference is empty">
+        </#if>
+        }
        ]
          <#break>