diff --git a/src/WMS.Web.Repositories/SerialNumbersRepositories.cs b/src/WMS.Web.Repositories/SerialNumbersRepositories.cs
index 1e02ddb7..11f59bdd 100644
--- a/src/WMS.Web.Repositories/SerialNumbersRepositories.cs
+++ b/src/WMS.Web.Repositories/SerialNumbersRepositories.cs
@@ -129,13 +129,9 @@ namespace WMS.Web.Repositories
             };
             if (!string.IsNullOrEmpty(s.SalBillNo))
             {
-                Random rd = new Random();
                 var list = JsonConvert.DeserializeObject<List<string>>(s.SalBillNo);
                 if (list.Count() > 0)
-                {
-                    int index = rd.Next(0, list.Count);
-                    respone.SalBillNo = list[index];
-                }
+                    respone.SalBillNo = list[0];
             }
 
             return respone;
@@ -202,8 +198,8 @@ namespace WMS.Web.Repositories
             var entity = await _context.SerialNumbers
                 .GroupJoin(_context.BoxInventory, serial => serial.BoxId, boxInventory => boxInventory.BoxId, (serial, boxInventory) => new { serial, boxInventory })
                 .SelectMany(x => x.boxInventory.DefaultIfEmpty(), (p, boxInventory) => new { p.serial, boxInventory })
-                .GroupJoin(_context.Box, s => s.serial.BoxId, box => box.Id, (s, box) => new { s.serial,s.boxInventory, box })
-                .SelectMany(x => x.box.DefaultIfEmpty(), (p, box) => new { p.serial,p.boxInventory, box })
+                .GroupJoin(_context.Box, s => s.serial.BoxId, box => box.Id, (s, box) => new { s.serial, s.boxInventory, box })
+                .SelectMany(x => x.box.DefaultIfEmpty(), (p, box) => new { p.serial, p.boxInventory, box })
                 .FirstOrDefaultAsync(w => serialNumber.Equals(w.serial.SerialNumber));
             if (entity == null || entity.serial == null) return null;
             response.BoxId = entity.serial.BoxId;