diff --git a/robot-systest/lib/ns_lib.robot b/robot-systest/lib/ns_lib.robot
index c81e33f..148e381 100644
--- a/robot-systest/lib/ns_lib.robot
+++ b/robot-systest/lib/ns_lib.robot
@@ -247,3 +247,13 @@
     @{vdur} =  Split String  ${stdout}
     [Return]  @{vdur}
 
+
+Get Vnf Kdu Replica Count
+    [Documentation]     Return the number of KDU replicas (empty if none) of a VNF instance.
+
+    [Arguments]   ${vnf_id}   ${kdu_name}
+
+    ${rc}  ${stdout}=  Run and Return RC and Output  osm vnf-show ${vnf_id} --kdu ${kdu_name} | yq r - config.replicaCount
+    Should Be Equal As Integers  ${rc}  ${success_return_code}  msg=${stdout}  values=False
+    [Return]  ${stdout}
+
diff --git a/robot-systest/testsuite/k8s_04-openldap_helm.robot b/robot-systest/testsuite/k8s_04-openldap_helm.robot
index 3f1a247..92d8605 100644
--- a/robot-systest/testsuite/k8s_04-openldap_helm.robot
+++ b/robot-systest/testsuite/k8s_04-openldap_helm.robot
@@ -32,6 +32,12 @@
 ${ns_id}   ${EMPTY}
 ${ns_config}   {vld: [ {name: mgmtnet, vim-network-name: %{VIM_MGMT_NET}} ] }
 ${publickey}   ${EMPTY}
+${vnf_member_index}   openldap
+${kdu_name}   ldap
+${upgrade_action}   upgrade
+${rollback_action}   rollback
+${replica_count}   3
+
 
 *** Test Cases ***
 Create Package For OpenLDAP CNF
@@ -51,6 +57,37 @@
     ${id}=   Create Network Service   ${nsd_name}   %{VIM_TARGET}   ${ns_name}   ${ns_config}  ${publickey}
     Set Suite Variable   ${ns_id}   ${id}
 
+Get Vnf Id
+    [Tags]   openldap   sanity   regression
+    Variable Should Exist  ${ns_id}  msg=Network service instance is not available
+    @{vnfr_list}=  Get Ns Vnfr Ids  ${ns_id}
+    Log List  ${vnfr_list}
+    Set Suite Variable  ${vnf_id}  ${vnfr_list}[0]
+
+Execute Upgrade Operation
+    [Tags]   openldap   sanity   regression
+    Variable Should Exist  ${ns_id}  msg=Network service instance is not available
+    ${ns_op_id}=  Execute NS K8s Action   ${ns_name}   ${upgrade_action}   ${vnf_member_index}   ${kdu_name}   replicaCount=${replica_count}
+
+Check Replicas After Upgrade Operation
+    [Tags]   openldap   sanity   regression
+    Variable Should Exist  ${ns_id}  msg=Network service instance is not available
+    ${count}=   Get Vnf Kdu Replica Count   ${vnf_id}   ${kdu_name}
+    log   ${count}
+    Should Be Equal As Integers   ${count}   ${replica_count}
+
+Execute Rollback Operation
+    [Tags]   openldap   sanity   regression
+    Variable Should Exist  ${ns_id}  msg=Network service instance is not available
+    ${ns_op_id}=  Execute NS K8s Action   ${ns_name}   ${rollback_action}   ${vnf_member_index}   ${kdu_name}
+
+Check Replicas After Rollback Operation
+    [Tags]   openldap   sanity   regression
+    Variable Should Exist  ${ns_id}  msg=Network service instance is not available
+    ${count}=   Get Vnf Kdu Replica Count   ${vnf_id}   ${kdu_name}
+    log   ${count}
+    Should Be Empty   ${count}
+
 Delete Network Service Instance
     [Tags]   openldap   sanity   regression   cleanup
     Delete NS   ${ns_name}