diff --git a/lib/certificate_utils.robot b/lib/certificate_utils.robot
index 961178c..60dcb27 100755
--- a/lib/certificate_utils.robot
+++ b/lib/certificate_utils.robot
@@ -164,7 +164,7 @@
 
 Delete All CA Certificate Via Redfish
     [Documentation]  Delete all CA certificate via Redfish.
-    ${cert_list}=  Redfish_Utils.Get Member List  /redfish/v1/Managers/bmc/Truststore/Certificates
+    ${cert_list}=  Redfish_Utils.Get Member List  /redfish/v1/Managers/${MANAGER_ID}/Truststore/Certificates
     FOR  ${cert}  IN  @{cert_list}
       Redfish.Delete  ${cert}  valid_status_codes=[${HTTP_NO_CONTENT}]
       Log To Console  Wait Time started in seconds ${wait_time}
@@ -318,5 +318,5 @@
 
     # NTP network takes few seconds to restart.
     Wait Until Keyword Succeeds  30 sec  10 sec
-    ...  Redfish.Patch  ${REDFISH_BASE_URI}Managers/bmc  body={'DateTime': '${new_time}'}
+    ...  Redfish.Patch  ${REDFISH_BASE_URI}Managers/${MANAGER_ID}  body={'DateTime': '${new_time}'}
     ...  valid_status_codes=[${HTTP_OK}]