diff --git a/backend/src/apiserver/resource/resource_manager.go b/backend/src/apiserver/resource/resource_manager.go
index e6d65248d0e..201f19d5e9a 100644
--- a/backend/src/apiserver/resource/resource_manager.go
+++ b/backend/src/apiserver/resource/resource_manager.go
@@ -1967,7 +1967,40 @@ func (r *ResourceManager) GetArtifactSessionInfo(ctx context.Context, artifact *
 	}
 
 	// Retrieve Session info
-	sessionInfoString := artifactCtx.CustomProperties["store_session_info"].GetStringValue()
+	storeSessionInfo, ok_session := artifactCtx.CustomProperties["store_session_info"]
+
+	var sessionInfoString = ""
+
+	if ok_session {
+		sessionInfoString = storeSessionInfo.GetStringValue()
+	} else {
+		// bucket_session_info is an old struct that needs to be converted to store_session_info
+		bucketSession := &objectstore.S3Params{}
+		err1 := json.Unmarshal([]byte(artifactCtx.CustomProperties["bucket_session_info"].GetStringValue()), bucketSession)
+		if err1 != nil {
+			return nil, "", err1
+		}
+		sessionInfoParams := &map[string]string{
+			"fromEnv":      "false",
+			"endpoint":     bucketSession.Endpoint,
+			"region":       bucketSession.Region,
+			"disableSSL":   strconv.FormatBool(bucketSession.DisableSSL),
+			"secretName":   bucketSession.SecretName,
+			"accessKeyKey": bucketSession.AccessKeyKey,
+			"secretKeyKey": bucketSession.SecretKeyKey,
+		}
+
+		sessionInfo := &objectstore.SessionInfo{
+			Provider: "s3",
+			Params:   *sessionInfoParams,
+		}
+		sessionInfoBytes, err2 := json.Marshal(*sessionInfo)
+		if err2 != nil {
+			return nil, "", err2
+		}
+		sessionInfoString = string(sessionInfoBytes)
+	}
+
 	if sessionInfoString == "" {
 		return nil, "", fmt.Errorf("Unable to retrieve artifact session info via context property.")
 	}
diff --git a/backend/src/apiserver/resource/resource_manager_test.go b/backend/src/apiserver/resource/resource_manager_test.go
index 3ff75028d22..5049a6b2bae 100644
--- a/backend/src/apiserver/resource/resource_manager_test.go
+++ b/backend/src/apiserver/resource/resource_manager_test.go
@@ -18,11 +18,13 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"github.com/kubeflow/pipelines/backend/src/v2/objectstore"
 	"strings"
 	"testing"
 	"time"
 
+	"github.com/kubeflow/pipelines/backend/src/v2/objectstore"
+	"github.com/kubeflow/pipelines/third_party/ml-metadata/go/ml_metadata"
+
 	"github.com/argoproj/argo-workflows/v3/pkg/apis/workflow/v1alpha1"
 	"github.com/argoproj/argo-workflows/v3/util/file"
 	"github.com/kubeflow/pipelines/backend/src/apiserver/client"
@@ -43,6 +45,14 @@ import (
 	"k8s.io/apimachinery/pkg/types"
 )
 
+func intPtr(i int64) *int64 {
+	return &i
+}
+
+func strPtr(i string) *string {
+	return &i
+}
+
 func initEnvVars() {
 	viper.Set(common.PodNamespace, "ns1")
 }
@@ -4020,6 +4030,35 @@ func TestCreateTask(t *testing.T) {
 	assert.Equal(t, expectedTask, storedTask, "The StoredTask return has unexpected value")
 }
 
+func TestBackwardsCompatibilityForSessionInfo(t *testing.T) {
+	_, manager, _, _, _, _ := initWithExperimentAndPipelineAndRun(t)
+
+	// First Artifact has assigned a bucket_session_info
+	artifact1 := &ml_metadata.Artifact{
+		Id:  intPtr(0),
+		Uri: strPtr("s3://test-bucket/pipeline/some-pipeline-id/task/key0"),
+	}
+
+	config1, _, err := manager.GetArtifactSessionInfo(context.Background(), artifact1)
+
+	// Assert the results
+	assert.NoError(t, err)
+	assert.NotNil(t, config1)
+
+	// Second Artifact has assigned a store_session_info
+	artifact2 := &ml_metadata.Artifact{
+		Id:  intPtr(1),
+		Uri: strPtr("s3://test-bucket/pipeline/some-pipeline-id/task/key1"),
+	}
+
+	// Call the function
+	config2, _, err := manager.GetArtifactSessionInfo(context.Background(), artifact2)
+
+	// Assert the results
+	assert.NoError(t, err)
+	assert.NotNil(t, config2)
+}
+
 var v2SpecHelloWorld = `
 components:
   comp-hello-world:
diff --git a/backend/src/v2/metadata/client_fake.go b/backend/src/v2/metadata/client_fake.go
index 7503ce2929a..286745189a1 100644
--- a/backend/src/v2/metadata/client_fake.go
+++ b/backend/src/v2/metadata/client_fake.go
@@ -174,25 +174,52 @@ func (c *FakeClient) createDummyData() {
 		AccessKeyKey: "testsecretaccesskey",
 		SecretKeyKey: "testsecretsecretkey",
 	}
-	storeSessionInfo, err := json.Marshal(ctx1SessInfo)
+	bucketSessionInfo, err := json.Marshal(ctx1SessInfo)
 	if err != nil {
 		glog.Fatal("failed to marshal fake session info")
 	}
+	ctx2SessInfo := map[string]string{
+		"Region":       "test2",
+		"Endpoint":     "test2.endpoint2",
+		"DisableSSL":   "false",
+		"SecretName":   "testsecret2",
+		"AccessKeyKey": "testsecretaccesskey2",
+		"SecretKeyKey": "testsecretsecretkey2",
+		"FromEnv":      "false",
+	}
+	sessInfo := &objectstore.SessionInfo{
+		Provider: "s3",
+		Params:   ctx2SessInfo,
+	}
+	storeSessionInfo2, err1 := json.Marshal(sessInfo)
+	if err1 != nil {
+		glog.Fatal("failed to marshal fake session info")
+	}
 
 	ctx1 := &pb.Context{
 		Id:   intPtr(0),
 		Name: strPtr("ctx-0"),
 		Type: strPtr("1"),
+		CustomProperties: map[string]*pb.Value{
+			"pipeline_root":       stringValue("s3://test-bucket"),
+			"bucket_session_info": stringValue(string(bucketSessionInfo)),
+			"namespace":           stringValue("test-namespace"),
+		},
+	}
+	ctx2 := &pb.Context{
+		Id:   intPtr(1),
+		Name: strPtr("ctx-1"),
+		Type: strPtr("1"),
 		CustomProperties: map[string]*pb.Value{
 			"pipeline_root":      stringValue("s3://test-bucket"),
-			"store_session_info": stringValue(string(storeSessionInfo)),
+			"store_session_info": stringValue(string(storeSessionInfo2)),
 			"namespace":          stringValue("test-namespace"),
 		},
 	}
-	c.contexts = []*pb.Context{ctx1}
+	c.contexts = []*pb.Context{ctx1, ctx2}
 	c.artifacts = []*pb.Artifact{art1, art2}
 	c.artifactIdsToContext = map[int64]*pb.Context{
 		*art1.Id: ctx1,
-		*art2.Id: ctx1,
+		*art2.Id: ctx2,
 	}
 }