diff --git a/yang-models/_3gpp-common-measurements.yang b/yang-models/_3gpp-common-measurements.yang
index e2cf97b8a3e946cdd07ac0bab2727e1d71104a5c..a89fc558fbf40cf87cdbe569d2510d8f8491a714 100755
--- a/yang-models/_3gpp-common-measurements.yang
+++ b/yang-models/_3gpp-common-measurements.yang
@@ -56,6 +56,7 @@ module _3gpp-common-measurements {
       Integration Reference Point (IRP);
       Information Service (IS)";
 
+  revision 2024-11-06 { reference CR-0487; } 
   revision 2024-05-06 { reference CR-0359; }
   revision 2024-02-24 { reference CR-0346; } 
   revision 2023-11-18 { reference "CR-0299 CR-0305"; }
@@ -187,6 +188,7 @@ 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
@@ -195,6 +197,8 @@ 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;