diff --git a/pkg/agent/core/ngt/handler/grpc/object.go b/pkg/agent/core/ngt/handler/grpc/object.go
index 208b48bf91..b7571c3344 100644
--- a/pkg/agent/core/ngt/handler/grpc/object.go
+++ b/pkg/agent/core/ngt/handler/grpc/object.go
@@ -21,6 +21,7 @@ import (
 	"github.com/vdaas/vald/apis/grpc/v1/payload"
 	"github.com/vdaas/vald/apis/grpc/v1/vald"
 	"github.com/vdaas/vald/internal/errors"
+	"github.com/vdaas/vald/internal/info"
 	"github.com/vdaas/vald/internal/log"
 	"github.com/vdaas/vald/internal/net/grpc"
 	"github.com/vdaas/vald/internal/net/grpc/codes"
@@ -66,7 +67,17 @@ func (s *server) Exists(ctx context.Context, uid *payload.Object_ID) (res *paylo
 		return nil, err
 	}
 	if _, ok := s.ngt.Exists(uuid); !ok {
-		err = status.New(codes.NotFound, errors.ErrObjectIDNotFound(uid.GetId()).Error()).Err()
+		err = errors.ErrObjectIDNotFound(uid.GetId())
+		err = status.WrapWithNotFound(fmt.Sprintf("Exists API meta %s's uuid not found", uid.GetId()), err,
+			&errdetails.RequestInfo{
+				RequestId:   uid.GetId(),
+				ServingData: errdetails.Serialize(uid),
+			},
+			&errdetails.ResourceInfo{
+				ResourceType: ngtResourceType + "/ngt.Exists",
+				ResourceName: fmt.Sprintf("%s: %s(%s)", apiName, s.name, s.ip),
+			},
+			uid.GetId())
 		if span != nil {
 			span.RecordError(err)
 			span.SetAttributes(trace.StatusCodeNotFound(err.Error())...)
@@ -114,7 +125,16 @@ func (s *server) GetObject(ctx context.Context, id *payload.Object_VectorRequest
 	}
 	vec, ts, err := s.ngt.GetObject(uuid)
 	if err != nil || vec == nil {
-		err = status.New(codes.NotFound, errors.ErrObjectNotFound(err, uuid).Error()).Err()
+		err = errors.ErrObjectNotFound(err, uuid)
+		err = status.WrapWithNotFound("GetObject API failed to remove request", err,
+			&errdetails.RequestInfo{
+				RequestId:   uuid,
+				ServingData: errdetails.Serialize(id),
+			},
+			&errdetails.ResourceInfo{
+				ResourceType: ngtResourceType + "/ngt.GetObject",
+				ResourceName: fmt.Sprintf("%s: %s(%s)", apiName, s.name, s.ip),
+			}, info.Get())
 		if span != nil {
 			span.RecordError(err)
 			span.SetAttributes(trace.StatusCodeNotFound(err.Error())...)