diff --git a/openpower/service_account/test_service_user.robot b/openpower/service_account/test_service_user.robot
index 5d5e188..5527cf4 100644
--- a/openpower/service_account/test_service_user.robot
+++ b/openpower/service_account/test_service_user.robot
@@ -1,9 +1,9 @@
 *** Settings ***
 Documentation    This suite is to test service user functionality via Redfish.
 
-Resource         ../lib/connection_client.robot
-Resource         ../lib/openbmc_ffdc.robot
-Resource         ../lib/bmc_redfish_utils.robot
+Resource         ../../lib/connection_client.robot 
+Resource         ../../lib/openbmc_ffdc.robot
+Resource         ../../lib/bmc_redfish_utils.robot
 
 Suite Setup      Suite Setup Execution
 Suite Teardown   Redfish.Logout
@@ -22,6 +22,14 @@
     Should Be Equal  Administrator  ${role_config}
 
 
+Verify Creating User With Service Username
+    [Documentation]  Verify that user with service username can not be created.
+
+    ${payload}=  Create Dictionary
+    ...  UserName=service Password=TestPwd1  RoleId=Operator  Enabled=${True}
+    Redfish.Post  /redfish/v1/AccountService/Accounts/  body=&{payload}
+    ...  valid_status_codes=[${HTTP_BAD_REQUEST}]
+
 *** Keywords ***
 
 Suite Setup Execution