diff --git a/RFXtoRP_HsaLstCarSta.ftl b/RFXtoRP_HsaLstCarSta.ftl
index c1bbfbc..1e41f4f 100644
--- a/RFXtoRP_HsaLstCarSta.ftl
+++ b/RFXtoRP_HsaLstCarSta.ftl
@@ -19,6 +19,9 @@
       <#-- *********************************************** Action = Update ******************** -->
         <#assign dataRfx = JsonUtil.decodeBase64(cloudEventMsg.data) />
         <#assign carrier_apt_status = JsonUtil.jsonToMap(dataRfx)>
+		<#if !carrier_apt_status.status??>
+	        <#stop 'the updated appointment Status not initialized'>
+        </#if>
 		[
 			{
 			 <#switch carrier_apt_status.status.carrier_status_code>