diff --git a/driver-pulsar/src/main/resources/activities/pulsar_client_sanity_seqloss.yaml b/driver-pulsar/src/main/resources/activities/pulsar_client_sanity_seqloss.yaml
index 49a139f05..61f3258b4 100644
--- a/driver-pulsar/src/main/resources/activities/pulsar_client_sanity_seqloss.yaml
+++ b/driver-pulsar/src/main/resources/activities/pulsar_client_sanity_seqloss.yaml
@@ -5,7 +5,7 @@ bindings:
 
 # document level parameters that apply to all Pulsar client types:
 params:
-  topic_uri: "persistent://public/default/sanity_seqloss2"
+  topic_uri: "persistent://tnt0/ns0/sanity_seqloss12"
   # Only applicable to producer and consumer
   # - used for message ordering and message loss check
   async_api: "true"
@@ -23,6 +23,7 @@ blocks:
         #seqerr_simu: "out_of_order"
         #seqerr_simu: "msg_loss"
         #seqerr_simu: "msg_dup"
+        seqerr_simu: "out_of_order, msg_loss"
         msg_key:
         msg_property:
         msg_value: "{myvalue}"