diff --git a/yang-models/_3gpp-common-measurements.yang b/yang-models/_3gpp-common-measurements.yang
index 3940a8596328addd1b8d8fccaf8fbe50e620bc54..8a5da660b88576b743076cb1b7f2aa59ff35ae36 100755
--- a/yang-models/_3gpp-common-measurements.yang
+++ b/yang-models/_3gpp-common-measurements.yang
@@ -57,6 +57,7 @@ module _3gpp-common-measurements {
       Integration Reference Point (IRP);
       Information Service (IS)";
 
+  revision 2024-11-05 { reference CR-0486; } 
   revision 2024-02-23 { reference CR-0347; } 
   revision 2024-01-29 { reference "CR-0327"; }
   revision 2023-11-17 { reference "CR-0298"; }
@@ -179,6 +180,7 @@ module _3gpp-common-measurements {
   grouping SupportedPerfMetricGroupGrp {
     list SupportedPerfMetricGroups {
       config false;
+      key idx;
       description "Captures a group of supported performance metrics and
         associated parameters related to their production and reporting.
         A SupportedPerfMetricGroup attribute which is part of an MOI may
@@ -187,6 +189,8 @@ module _3gpp-common-measurements {
         can specify supported metrics for contained ManagedFunctions
         like a GNBDUFunction.";
 
+      leaf idx { type uint32; }
+        
       leaf-list performanceMetrics {
         type string;
         min-elements 1;