diff --git a/RFXtoRP_HsrPrepa_HandlingunitGoodsPrepared.ftl b/RFXtoRP_HsrPrepa_HandlingunitGoodsPrepared.ftl
index feb6c2e..046e1d3 100644
--- a/RFXtoRP_HsrPrepa_HandlingunitGoodsPrepared.ftl
+++ b/RFXtoRP_HsrPrepa_HandlingunitGoodsPrepared.ftl
@@ -8,6 +8,10 @@
       "ProjectID": "${projectRP}"
     },
     "ID": {
+       "RefDate": {
+      "AuthorTimeZone": "${time_zone_rfx}",
+      "DateTime": "${preparation_line.confirmation_datetime}"
+    },
       <#if despatched_ipg.carton_number != "000000000000000000">
         "RefID": "${despatched_ipg.carton_number}"
       <#else>