diff --git a/app/Producto.php b/app/Producto.php
index f46a5b5..f365f0d 100644
--- a/app/Producto.php
+++ b/app/Producto.php
@@ -11,7 +11,9 @@ use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Http\Request;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\DB;
+use League\Csv\CannotInsertRecord;
 use League\Csv\Exception;
+use League\Csv\InvalidArgument;
 
 class Producto extends Model
 {
@@ -143,6 +145,10 @@ class Producto extends Model
             ->groupBy('producto');
     }
 
+    /**
+     * @throws InvalidArgument
+     * @throws CannotInsertRecord
+     */
     static public function planillaNotas() {
         $headers = ['Producto'];
         $barrios = GrupoDeCompra::barriosMenosPruebaConPedidosAprobados()