diff --git a/internal/api/handler.go b/internal/api/handler.go
index 5c719f7fd..27bf43a7e 100644
--- a/internal/api/handler.go
+++ b/internal/api/handler.go
@@ -1540,10 +1540,11 @@ func (h *Handler) handlePostDashboard(ctx context.Context, ai accessInfo, dash D
 		if create {
 			s = "create"
 		}
+		err = fmt.Errorf("Cannot %s dashboard: %w", s, err)
 		if metajournal.IsUserRequestError(err) {
-			return &DashboardInfo{}, httpErr(http.StatusBadRequest, fmt.Errorf("can't %s dashboard: %w", s, err))
+			return &DashboardInfo{}, httpErr(http.StatusBadRequest, err)
 		}
-		return &DashboardInfo{}, fmt.Errorf("can't %s dashboard: %w", s, err)
+		return &DashboardInfo{}, err
 	}
 	return &DashboardInfo{Dashboard: getDashboardMetaInfo(&dashboard)}, nil
 }
@@ -1617,7 +1618,7 @@ func (h *Handler) handlePostNamespace(ctx context.Context, ai accessInfo, namesp
 		if create {
 			s = "create"
 		}
-		errReturn := fmt.Errorf("can't %s namespace: %w", s, err)
+		errReturn := fmt.Errorf("Cannot %s namespace: %w", s, err)
 		if metajournal.IsUserRequestError(err) {
 			return &NamespaceInfo{}, httpErr(http.StatusBadRequest, errReturn)
 		}
@@ -1677,8 +1678,10 @@ func (h *Handler) handlePostMetric(ctx context.Context, ai accessInfo, _ string,
 		}
 		resp, err = h.metadataLoader.SaveMetric(ctx, metric, ai.toMetadata())
 		if err != nil {
-			err = fmt.Errorf("error creating metric in sqlite engine: %w", err)
-			log.Println(err.Error())
+			if metajournal.IsUserRequestError(err) {
+				errReturn := fmt.Errorf("Cannot create metric: %w", err)
+				return format.MetricMetaValue{}, httpErr(http.StatusBadRequest, errReturn)
+			}
 			return format.MetricMetaValue{}, fmt.Errorf("failed to create metric: %w", err)
 		}
 	} else {
@@ -1700,8 +1703,10 @@ func (h *Handler) handlePostMetric(ctx context.Context, ai accessInfo, _ string,
 		}
 		resp, err = h.metadataLoader.SaveMetric(ctx, metric, ai.toMetadata())
 		if err != nil {
-			err = fmt.Errorf("error saving metric in sqllite: %w", err)
-			log.Println(err.Error())
+			if metajournal.IsUserRequestError(err) {
+				errReturn := fmt.Errorf("Cannot update metric: %w", err)
+				return format.MetricMetaValue{}, httpErr(http.StatusBadRequest, errReturn)
+			}
 			return format.MetricMetaValue{}, fmt.Errorf("can't edit metric: %w", err)
 		}
 	}
diff --git a/internal/metadata/dbv2_test.go b/internal/metadata/dbv2_test.go
index 696a5d345..e1bddd870 100644
--- a/internal/metadata/dbv2_test.go
+++ b/internal/metadata/dbv2_test.go
@@ -81,12 +81,8 @@ func Test_SaveMetric(t *testing.T) {
 	e, err := db.SaveEntity(context.Background(), "a", 0, 0, "{}", true, false, format.MetricEvent, metadata)
 	require.NoError(t, err)
 	require.Equal(t, metadata, e.Metadata)
-	updates, err := db.JournalEvents(context.Background(), 0, 100)
-	require.NoError(t, err)
-	require.Len(t, updates, 1)
-	m := updates[0]
-	require.Equal(t, "a", m.Name)
-	require.Equal(t, "{}", m.Data)
+	_, err = db.SaveEntity(context.Background(), "a", 0, 0, "{}", true, false, format.MetricEvent, metadata)
+	require.Error(t, err)
 }
 
 func Test_GetOldVersion(t *testing.T) {
diff --git a/internal/metadata/rpc_handler.go b/internal/metadata/rpc_handler.go
index be58b0e91..f0428bb76 100644
--- a/internal/metadata/rpc_handler.go
+++ b/internal/metadata/rpc_handler.go
@@ -204,6 +204,9 @@ func (h *Handler) RawEditEntity(ctx context.Context, hctx *rpc.HandlerContext) (
 	if errors.Is(err, errInvalidMetricVersion) {
 		return "", data_model.ErrEntityInvalidVersion
 	}
+	if errors.Is(err, errMetricIsExist) {
+		return "", data_model.ErrEntityExists
+	}
 	if err != nil {
 		return "", fmt.Errorf("failed to create event: %w", err)
 	}
diff --git a/internal/metajournal/metadata.go b/internal/metajournal/metadata.go
index 10d6acb3a..b36131066 100644
--- a/internal/metajournal/metadata.go
+++ b/internal/metajournal/metadata.go
@@ -15,6 +15,7 @@ import (
 	"math"
 	"time"
 
+	"github.com/vkcom/statshouse/internal/data_model"
 	"go4.org/mem"
 
 	"github.com/vkcom/statshouse/internal/data_model/gen2/tlmetadata"
@@ -39,6 +40,21 @@ func IsUserRequestError(err error) bool {
 	return errors.Is(err, errorInvalidUserRequest)
 }
 
+func wrapSaveEntityError(err error) error {
+	var rpcErr = &rpc.Error{}
+	if errors.As(err, &rpcErr) {
+		switch rpcErr.Code {
+		case data_model.ErrEntityInvalidVersion.Code:
+			return errors.Join(errorInvalidUserRequest, fmt.Errorf(data_model.ErrEntityInvalidVersion.Description))
+		case data_model.ErrEntityExists.Code:
+			return errors.Join(errorInvalidUserRequest, fmt.Errorf(data_model.ErrEntityExists.Description))
+		case data_model.ErrEntityNotExists.Code:
+			return errors.Join(errorInvalidUserRequest, fmt.Errorf(data_model.ErrEntityNotExists.Description))
+		}
+	}
+	return err
+}
+
 func NewMetricMetaLoader(client *tlmetadata.Client, loadTimeout time.Duration) *MetricMetaLoader {
 	return &MetricMetaLoader{
 		client:      client,
@@ -71,7 +87,7 @@ func (l *MetricMetaLoader) SaveDashboard(ctx context.Context, value format.Dashb
 	event := tlmetadata.Event{}
 	err = l.client.EditEntitynew(ctx, editMetricReq, nil, &event)
 	if err != nil {
-		return format.DashboardMeta{}, fmt.Errorf("failed to edit metric: %w", err)
+		return format.DashboardMeta{}, wrapSaveEntityError(err)
 	}
 	if event.Id < math.MinInt32 || event.Id > math.MaxInt32 {
 		return format.DashboardMeta{}, fmt.Errorf("dashboard ID %d assigned by metaengine does not fit into int32 for dashboard %q", event.Id, event.Name)
@@ -121,7 +137,7 @@ func (l *MetricMetaLoader) SaveMetricsGroup(ctx context.Context, value format.Me
 	event := tlmetadata.Event{}
 	err = l.client.EditEntitynew(ctx, editMetricReq, nil, &event)
 	if err != nil {
-		return format.MetricsGroup{}, fmt.Errorf("failed to edit group: %w", err)
+		return format.MetricsGroup{}, wrapSaveEntityError(err)
 	}
 	if event.Id < math.MinInt32 || event.Id > math.MaxInt32 {
 		return g, fmt.Errorf("group ID %d assigned by metaengine does not fit into int32 for group %q", event.Id, event.Name)
@@ -167,7 +183,7 @@ func (l *MetricMetaLoader) SaveNamespace(ctx context.Context, value format.Names
 	event := tlmetadata.Event{}
 	err = l.client.EditEntitynew(ctx, editMetricReq, nil, &event)
 	if err != nil {
-		return format.NamespaceMeta{}, fmt.Errorf("failed to edit namespace: %w", err)
+		return format.NamespaceMeta{}, wrapSaveEntityError(err)
 	}
 	if event.Id < math.MinInt32 || event.Id > math.MaxInt32 {
 		return g, fmt.Errorf("namespace ID %d assigned by metaengine does not fit into int32 for group %q", event.Id, event.Name)
@@ -260,7 +276,7 @@ func (l *MetricMetaLoader) SaveMetric(ctx context.Context, value format.MetricMe
 	event := tlmetadata.Event{}
 	err = l.client.EditEntitynew(ctx, editMetricReq, nil, &event)
 	if err != nil {
-		return m, fmt.Errorf("failed to edit metric: %w", err)
+		return m, wrapSaveEntityError(err)
 	}
 	if event.Id < math.MinInt32 || event.Id > math.MaxInt32 {
 		return m, fmt.Errorf("metric ID %d assigned by metaengine does not fit into int32 for metric %q", event.Id, event.Name)