diff --git a/pkg/placement/controllers/scheduling/schedule_test.go b/pkg/placement/controllers/scheduling/schedule_test.go
index 85f3b6921..7be3f7588 100644
--- a/pkg/placement/controllers/scheduling/schedule_test.go
+++ b/pkg/placement/controllers/scheduling/schedule_test.go
@@ -3,7 +3,6 @@ package scheduling
 import (
 	"context"
 	"encoding/json"
-	"fmt"
 	"reflect"
 	"sort"
 	"testing"
@@ -148,7 +147,7 @@ func TestSchedule(t *testing.T) {
 			initObjs: []runtime.Object{
 				testinghelpers.NewClusterSet(clusterSetName).Build(),
 				testinghelpers.NewClusterSetBinding(placementNamespace, clusterSetName),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 1)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 1)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithDecisions("cluster1", "cluster2").Build(),
 			},
@@ -420,7 +419,7 @@ func TestSchedule(t *testing.T) {
 			initObjs: []runtime.Object{
 				testinghelpers.NewClusterSet(clusterSetName).Build(),
 				testinghelpers.NewClusterSetBinding(placementNamespace, clusterSetName),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 1)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 1)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithDecisions("cluster1").Build(),
 			},
@@ -467,7 +466,7 @@ func TestSchedule(t *testing.T) {
 			initObjs: []runtime.Object{
 				testinghelpers.NewClusterSet(clusterSetName).Build(),
 				testinghelpers.NewClusterSetBinding(placementNamespace, clusterSetName),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName("others", 1)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName("others", 1)).
 					WithDecisions("cluster1", "cluster2").Build(),
 			},
 			clusters: []*clusterapiv1.ManagedCluster{
@@ -513,11 +512,11 @@ func TestSchedule(t *testing.T) {
 			initObjs: []runtime.Object{
 				testinghelpers.NewClusterSet(clusterSetName).Build(),
 				testinghelpers.NewClusterSetBinding(placementNamespace, clusterSetName),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName("others", 1)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName("others", 1)).
 					WithDecisions("cluster2", "cluster3").Build(),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName("others", 2)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName("others", 2)).
 					WithDecisions("cluster1", "cluster2").Build(),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 1)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 1)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithDecisions("cluster3").Build(),
 			},
@@ -605,10 +604,6 @@ func TestSchedule(t *testing.T) {
 	}
 }
 
-func placementDecisionName(placementName string, index int) string {
-	return fmt.Sprintf("%s-decision-%d", placementName, index)
-}
-
 func TestFilterResults(t *testing.T) {
 
 }
diff --git a/pkg/placement/controllers/scheduling/scheduling_controller.go b/pkg/placement/controllers/scheduling/scheduling_controller.go
index edcdeeb2c..ddd74adb2 100644
--- a/pkg/placement/controllers/scheduling/scheduling_controller.go
+++ b/pkg/placement/controllers/scheduling/scheduling_controller.go
@@ -456,7 +456,7 @@ func (c *schedulingController) generatePlacementDecisionsAndStatus(
 	placement *clusterapiv1beta1.Placement,
 	clusters []*clusterapiv1.ManagedCluster,
 ) ([]*clusterapiv1beta1.PlacementDecision, []*clusterapiv1beta1.DecisionGroupStatus, *framework.Status) {
-	placementDecisionIndex := 0
+	placementDecisionIndex := 1
 	var placementDecisions []*clusterapiv1beta1.PlacementDecision
 	var decisionGroupStatus []*clusterapiv1beta1.DecisionGroupStatus
 
@@ -465,7 +465,8 @@ func (c *schedulingController) generatePlacementDecisionsAndStatus(
 
 	// generate placement decision for each decision group
 	for decisionGroupIndex, decisionGroup := range decisionGroups {
-		// generate placement decisions and status, group and placement name index starts from 0.
+		// generate placement decisions and status, group name index starts from 0, placement name index
+		// starts from 1 to keep backward compatibility.
 		pds, groupStatus := c.generateDecision(placement, decisionGroup, decisionGroupIndex, placementDecisionIndex)
 
 		placementDecisions = append(placementDecisions, pds...)
diff --git a/pkg/placement/controllers/scheduling/scheduling_controller_test.go b/pkg/placement/controllers/scheduling/scheduling_controller_test.go
index 57ae8aa8e..0cfb0b734 100644
--- a/pkg/placement/controllers/scheduling/scheduling_controller_test.go
+++ b/pkg/placement/controllers/scheduling/scheduling_controller_test.go
@@ -86,7 +86,7 @@ func TestSchedulingController_sync(t *testing.T) {
 					{
 						DecisionGroupIndex: 0,
 						DecisionGroupName:  "",
-						Decisions:          []string{"placement1-decision-0"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 1)},
 						ClustersCount:      3,
 					},
 				}
@@ -194,25 +194,25 @@ func TestSchedulingController_sync(t *testing.T) {
 					{
 						DecisionGroupIndex: 0,
 						DecisionGroupName:  "canary",
-						Decisions:          []string{"placement1-decision-0"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 1)},
 						ClustersCount:      1,
 					},
 					{
 						DecisionGroupIndex: 1,
 						DecisionGroupName:  "canary",
-						Decisions:          []string{"placement1-decision-1"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 2)},
 						ClustersCount:      1,
 					},
 					{
 						DecisionGroupIndex: 2,
 						DecisionGroupName:  "",
-						Decisions:          []string{"placement1-decision-2"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 3)},
 						ClustersCount:      1,
 					},
 					{
 						DecisionGroupIndex: 3,
 						DecisionGroupName:  "",
-						Decisions:          []string{"placement1-decision-3"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 4)},
 						ClustersCount:      1,
 					},
 				}
@@ -276,13 +276,13 @@ func TestSchedulingController_sync(t *testing.T) {
 					{
 						DecisionGroupIndex: 0,
 						DecisionGroupName:  "group1",
-						Decisions:          []string{"placement1-decision-0"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 1)},
 						ClustersCount:      2,
 					},
 					{
 						DecisionGroupIndex: 1,
 						DecisionGroupName:  "group2",
-						Decisions:          []string{"placement1-decision-1"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 2)},
 						ClustersCount:      1,
 					},
 				}
@@ -334,19 +334,19 @@ func TestSchedulingController_sync(t *testing.T) {
 					{
 						DecisionGroupIndex: 0,
 						DecisionGroupName:  "",
-						Decisions:          []string{"placement1-decision-0"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 1)},
 						ClustersCount:      1,
 					},
 					{
 						DecisionGroupIndex: 1,
 						DecisionGroupName:  "",
-						Decisions:          []string{"placement1-decision-1"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 2)},
 						ClustersCount:      1,
 					},
 					{
 						DecisionGroupIndex: 2,
 						DecisionGroupName:  "",
-						Decisions:          []string{"placement1-decision-2"},
+						Decisions:          []string{testinghelpers.PlacementDecisionName(placementName, 3)},
 						ClustersCount:      1,
 					},
 				}
@@ -510,7 +510,7 @@ func TestSchedulingController_sync(t *testing.T) {
 				testinghelpers.NewClusterSet("clusterset1").Build(),
 				testinghelpers.NewClusterSetBinding(placementNamespace, "clusterset1"),
 				testinghelpers.NewManagedCluster("cluster1").WithLabel(clusterapiv1beta2.ClusterSetLabel, "clusterset1").Build(),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 0)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 1)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithLabel(clusterapiv1beta1.DecisionGroupNameLabel, "").
 					WithLabel(clusterapiv1beta1.DecisionGroupIndexLabel, "0").
@@ -1265,12 +1265,12 @@ func TestBind(t *testing.T) {
 			placement: testinghelpers.NewPlacement(placementNamespace, placementName).Build(),
 			clusters:  newClusters(128),
 			initObjs: []runtime.Object{
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 0)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 1)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithLabel(clusterapiv1beta1.DecisionGroupNameLabel, "").
 					WithLabel(clusterapiv1beta1.DecisionGroupIndexLabel, "0").
 					WithDecisions(newSelectedClusters(128)[:100]...).Build(),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 1)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 2)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithLabel(clusterapiv1beta1.DecisionGroupNameLabel, "").
 					WithLabel(clusterapiv1beta1.DecisionGroupIndexLabel, "0").
@@ -1283,7 +1283,7 @@ func TestBind(t *testing.T) {
 			placement: testinghelpers.NewPlacement(placementNamespace, placementName).Build(),
 			clusters:  newClusters(128),
 			initObjs: []runtime.Object{
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 0)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 1)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithLabel(clusterapiv1beta1.DecisionGroupNameLabel, "fakegroup").
 					WithLabel(clusterapiv1beta1.DecisionGroupIndexLabel, "0").
@@ -1317,12 +1317,12 @@ func TestBind(t *testing.T) {
 			placement: testinghelpers.NewPlacement(placementNamespace, placementName).Build(),
 			clusters:  newClusters(10),
 			initObjs: []runtime.Object{
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 0)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 1)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithLabel(clusterapiv1beta1.DecisionGroupNameLabel, "").
 					WithLabel(clusterapiv1beta1.DecisionGroupIndexLabel, "0").
 					WithDecisions(newSelectedClusters(128)[:100]...).Build(),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 1)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 2)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithLabel(clusterapiv1beta1.DecisionGroupNameLabel, "").
 					WithLabel(clusterapiv1beta1.DecisionGroupIndexLabel, "0").
@@ -1344,12 +1344,12 @@ func TestBind(t *testing.T) {
 			placement: testinghelpers.NewPlacement(placementNamespace, placementName).Build(),
 			clusters:  newClusters(0),
 			initObjs: []runtime.Object{
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 0)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 1)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithLabel(clusterapiv1beta1.DecisionGroupNameLabel, "").
 					WithLabel(clusterapiv1beta1.DecisionGroupIndexLabel, "0").
 					WithDecisions(newSelectedClusters(128)[:100]...).Build(),
-				testinghelpers.NewPlacementDecision(placementNamespace, placementDecisionName(placementName, 1)).
+				testinghelpers.NewPlacementDecision(placementNamespace, testinghelpers.PlacementDecisionName(placementName, 2)).
 					WithLabel(clusterapiv1beta1.PlacementLabel, placementName).
 					WithLabel(clusterapiv1beta1.DecisionGroupNameLabel, "").
 					WithLabel(clusterapiv1beta1.DecisionGroupIndexLabel, "0").
diff --git a/pkg/placement/helpers/testing/builders.go b/pkg/placement/helpers/testing/builders.go
index 244318510..1b44b7fdc 100644
--- a/pkg/placement/helpers/testing/builders.go
+++ b/pkg/placement/helpers/testing/builders.go
@@ -130,7 +130,7 @@ func (b *PlacementBuilder) WithNumOfSelectedClusters(nosc int, placementName str
 			DecisionGroupIndex: 0,
 			DecisionGroupName:  "",
 			ClustersCount:      int32(nosc),
-			Decisions:          []string{fmt.Sprintf("%s-decision-%d", placementName, 0)},
+			Decisions:          []string{PlacementDecisionName(placementName, 1)},
 		},
 	}
 	return b
@@ -375,3 +375,7 @@ func (a *AddOnPlacementScoreBuilder) WithValidUntil(validUntil time.Time) *AddOn
 func (a *AddOnPlacementScoreBuilder) Build() *clusterapiv1alpha1.AddOnPlacementScore {
 	return a.addOnPlacementScore
 }
+
+func PlacementDecisionName(placementName string, index int) string {
+	return fmt.Sprintf("%s-decision-%d", placementName, index)
+}