diff --git a/workflow/offer-en-1.0.0.bpmn b/workflow/offer-en-1.0.0.bpmn
index 7f31a34..d04e1b1 100644
--- a/workflow/offer-en-1.0.0.bpmn
+++ b/workflow/offer-en-1.0.0.bpmn
@@ -1046,6 +1046,7 @@ result.isValid=true;
         <imixs:item name="txtactivityresult" type="xs:string">
           <imixs:value><![CDATA[<imixs-ai name="RETRIEVAL">
   <endpoint>https://embeddings.llama.cpp.imixs.com/</endpoint>
+  <reference-item>product.ref</reference-item>
   <debug>true</debug>
 </imixs-ai>
 ]]></imixs:value>
@@ -1276,6 +1277,7 @@ Color: <itemvalue>_color</itemvalue><br />
         <imixs:item name="txtactivityresult" type="xs:string">
           <imixs:value><![CDATA[<imixs-ai name="RETRIEVAL">
   <endpoint>https://embeddings.llama.cpp.imixs.com/</endpoint>
+  <reference-item>product.ref</reference-item>
   <debug>true</debug>
 </imixs-ai>
 ]]></imixs:value>