diff --git a/WarehouseMgr/Tnb.WarehouseMgr.Entities/Dto/Outputs/CollocationSchemeOutput.cs b/WarehouseMgr/Tnb.WarehouseMgr.Entities/Dto/Outputs/CollocationSchemeOutput.cs
index 1a23c508..64ee7215 100644
--- a/WarehouseMgr/Tnb.WarehouseMgr.Entities/Dto/Outputs/CollocationSchemeOutput.cs
+++ b/WarehouseMgr/Tnb.WarehouseMgr.Entities/Dto/Outputs/CollocationSchemeOutput.cs
@@ -70,7 +70,7 @@ namespace Tnb.WarehouseMgr.Entities.Dto.Outputs
         /// <summary>
         /// 齐套明细Json
         /// </summary>
-        public string CollocationSchemeDsJson { get; set; }
+        public string CollocationSchemeDsJson { get; set; }=string.Empty;
         [JsonIgnore]
         public List<WmsCollocationSchemeD>? list { get; set; }
     }
diff --git a/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs b/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs
index c2114d31..f38354e8 100644
--- a/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs
+++ b/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs
@@ -25,6 +25,7 @@ using Mapster;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.CodeAnalysis;
+using NPOI.HPSF;
 using NPOI.OpenXmlFormats.Wordprocessing;
 using Polly.Timeout;
 using Senparc.Weixin.Work.AdvancedAPIs.OaDataOpen;
@@ -187,6 +188,7 @@ namespace Tnb.WarehouseMgr
             //任务链属性处理内部函数
             async Task _taskChainAttrHandle(List<WmsDistaskH> items, List<WmsPretaskH> areaPreTasks, int moveNum)
             {
+                var groupCode = await _billRullService.GetBillNumber(WmsWareHouseConst.WMS_TASK_EXECUTE_ENCODE);
                 await Task.Run(() =>
                   {
                       if (moveNum == 1 || (moveNum > areaPreTasks.Count && areaPreTasks.Count == 1))
@@ -194,19 +196,34 @@ namespace Tnb.WarehouseMgr
                           items.ForEach(x =>
                           {
                               x.is_chain = 0;
-
                           });
+                          items[^items.Count].groups = $"{groupCode}-1";
                       }
                       else if ((moveNum > areaPreTasks.Count && areaPreTasks.Count > 1) || moveNum < areaPreTasks.Count)
                       {
                           items.ForEach(x => x.is_chain = 1);
-                          //items[0].chain_type = "1";
-                          //for (int i = 0; i < items.Count; i++)
-                          //{
-                          //    if (i == 0 || i == items.Count - 1) continue;
-                          //    items[i].chain_type = "2";
-                          //}
-                          //items[^1].chain_type = "3";
+                          var mod = items.Count % moveNum > 0 ? items.Count / moveNum + 1 : items.Count / moveNum;
+                          int start = 0, end = moveNum;
+                          var arrary = items.ToArray();
+                          var itemsCount = items.Count;
+                          for (int i = 1; i <= mod; i++)
+                          {
+                              if (start >= itemsCount) break;
+                              var subArray = arrary[start..end];
+                              for (int j = 0, arrLen = subArray.Length; j < arrLen; j++)
+                              {
+                                  subArray[j].groups = $"{groupCode}-{i}";
+                              }
+                              start = end;
+                              if ((end + moveNum) >= arrary.Length)
+                              {
+                                  end = arrary.Length;
+                              }
+                              else
+                              {
+                                  end = end + moveNum;
+                              }
+                          }
                       }
                   });
 
@@ -234,12 +251,13 @@ namespace Tnb.WarehouseMgr
                 {
                     var moveNum = itGroup.First().move_num;
                     var items = itGroup.Adapt<List<WmsDistaskH>>();
-                    items.ForEach(x =>
+                    for (int i = 0, cnt = items.Count; i < cnt; i++)
                     {
-                        x.id = SnowflakeIdHelper.NextId();
-                        x.status = WmsWareHouseConst.TASK_BILL_STATUS_DZX_ID;
-                        x.bill_code = _billRullService.GetBillNumber(WmsWareHouseConst.WMS_TASK_EXECUTE_ENCODE).GetAwaiter().GetResult();
-                    });
+                        var num = i + 1;
+                        items[i].id = SnowflakeIdHelper.NextId();
+                        items[i].status = WmsWareHouseConst.TASK_BILL_STATUS_DZX_ID;
+                        items[i].bill_code = await _billRullService.GetBillNumber(WmsWareHouseConst.WMS_TASK_EXECUTE_ENCODE);
+                    }
 
                     if (moveNum == 1)
                     {