diff --git a/obp-api/src/main/resources/props/sample.props.template b/obp-api/src/main/resources/props/sample.props.template
index 0a057070d7..8ffcfd07cb 100644
--- a/obp-api/src/main/resources/props/sample.props.template
+++ b/obp-api/src/main/resources/props/sample.props.template
@@ -123,9 +123,12 @@ long_endpoint_timeout = 55000
 
 #This is the api instance, we create kafka topic based on this number, each instance should have each own id. use it in load balancing + Kafka setup
 #This is also used for scheduler.
-#OBP will concatenate the UUID string with the value. If we set the value to end with "final", obp will retain that value.
+#OBP set the default as the non-persistent UUID string.
+#api_instance_id=7uy8a7e4-6d02-40e3-a129-0b2bf89de8uh
+#If a value is set, OBP will concatenate the UUID string with the value.
 #api_instance_id=1
-api_instance_id=1_final
+#When the value is set to conclude with "final," OBP will preserve that value.
+#api_instance_id=1_final
 
 ## DEPRECATED
 ## Enable user authentication via kafka
diff --git a/obp-api/src/main/resources/props/test.default.props.template b/obp-api/src/main/resources/props/test.default.props.template
index 44550f1a55..8f5102df60 100644
--- a/obp-api/src/main/resources/props/test.default.props.template
+++ b/obp-api/src/main/resources/props/test.default.props.template
@@ -15,9 +15,6 @@
 ### if logger.logfile is defined
 #logger.logfile="obp-api.log"
 
-#This is the api instance
-api_instance_id=1_final
-
 #which data connector to use
 
 #connector=rest
diff --git a/obp-api/src/main/scala/code/api/constant/constant.scala b/obp-api/src/main/scala/code/api/constant/constant.scala
index 8d7064dc6e..6ace561278 100644
--- a/obp-api/src/main/scala/code/api/constant/constant.scala
+++ b/obp-api/src/main/scala/code/api/constant/constant.scala
@@ -25,11 +25,15 @@ object Constant extends MdcLoggable {
   final val HostName = APIUtil.getPropsValue("hostname").openOrThrowException(ErrorMessages.HostnameNotSpecified)
   
   final val ApiInstanceId = {
-    val apiInstanceIdFromProps = APIUtil.getPropsValue("api_instance_id").openOrThrowException(ErrorMessages.ApiInstanceIdNotSpecified)
-    if(apiInstanceIdFromProps.endsWith("final")){
-      apiInstanceIdFromProps
+    val apiInstanceIdFromProps = APIUtil.getPropsValue("api_instance_id")
+    if(apiInstanceIdFromProps.isDefined){
+      if(apiInstanceIdFromProps.head.endsWith("final")){
+        apiInstanceIdFromProps.head
+      }else{
+        s"${apiInstanceIdFromProps.head}_${APIUtil.generateUUID()}"
+      }    
     }else{
-      s"${apiInstanceIdFromProps}_${APIUtil.generateUUID()}"
+      APIUtil.generateUUID()
     }
   }
   
diff --git a/release_notes.md b/release_notes.md
index ed8d397c7f..efcd1f5f1e 100644
--- a/release_notes.md
+++ b/release_notes.md
@@ -122,7 +122,7 @@ Date          Commit        Action
                             1. accountaccess_backup_2019_05_17_11_16_32_134
                             2.  viewdefinition_backup_2019_05_17_11_16_31_862
 29/04/2019    a6b58a1       Added Props system_environment_property_name_prefix, default is OBP_. This adds the prefix only for the system environment property name, eg: db.driver --> OBP_db.driver
-07/07/2018    4944572       Added Props api_instance_id, default is 1. This deceides the current api instance number, start from 1.  
+07/07/2018    4944572       Added Props api_instance_id, default is non-persistent UUID 7uy8a7e4-6d02-40e3-a129-0b2bf89de8uh. 
 29/06/2018    7422894       Added Props logging.database.queries.enable, default is false. This should enable logging all the database queries in log file.
 01/06/2018    a286684       Added Props write_connector_metrics, default is false. This decides whether the connector level metric save or not
 29/05/2018    c0d50b5       Added Props kafka.partitions, default is 3. This should match the partitions in Kafka config