diff --git a/internal/biz/warning_budget.go b/internal/biz/warning_budget.go
index f76ce44..efb8283 100644
--- a/internal/biz/warning_budget.go
+++ b/internal/biz/warning_budget.go
@@ -115,14 +115,24 @@ func (this *VoucherBiz) WarningBudget(ctx context.Context, product *bo.ProductBo
 		return fmt.Errorf("no warning budget")
 	}
 
+	if product.WarningBudget == 0 {
+		return fmt.Errorf("no warning budget")
+	}
+
+	now := time.Now()
+	if now.Before(*product.StartTime) {
+		return fmt.Errorf("not start")
+	}
+	if now.After(*product.EndTime) {
+		return fmt.Errorf("expired")
+	}
+
 	wxResp, err := this.WechatCpnRepo.QueryProduct(ctx, product.MchId, product.BatchNo)
 	if err != nil {
 		return err
 	}
-	if err = this.Calculate(ctx, product, wxResp); err != nil {
-		return err
-	}
-	return nil
+
+	return this.Calculate(ctx, product, wxResp)
 }
 
 func (this *VoucherBiz) Calculate(ctx context.Context, product *bo.ProductBo, wxResp *cashcoupons.Stock) error {