diff --git a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
index 05384390d..36f55cde0 100644
--- a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
@@ -93,6 +93,13 @@ namespace IRaCIS.Core.Application.Service.Allocation
                     {
                         await _subjectUserRepository.AddAsync(new SubjectUser() {TrialId=command.TrialId,  ArmEnum = doctorArm.ArmEnum, DoctorUserId = doctorArm.DoctorUserId, SubjectId = subjectId, AssignTime = DateTime.Now });
 
+                        await _visitTaskRepository.BatchUpdateNoTrackingAsync(t => t.SubjectId == command.SubjectId && t.DoctorUserId == command.DoctorUserId && t.ArmEnum == command.ArmEnum && t.TrialId==command.TrialId, u => new VisitTask()
+                        {
+                            AllocateTime = DateTime.Now,
+                            DoctorUserId = command.DoctorUserId,
+                            TaskAllocationState = TaskAllocationState.Allocated
+                        });
+
                     }
                 }
             }
@@ -150,7 +157,7 @@ namespace IRaCIS.Core.Application.Service.Allocation
 
                 await _subjectUserRepository.DeleteFromQueryAsync(t => t.Id == command.Id);
 
-                await _visitTaskRepository.UpdatePartialFromQueryAsync(t => t.SubjectId == command.SubjectId && t.DoctorUserId == command.DoctorUserId && t.ArmEnum == command.ArmEnum, u => new VisitTask()
+                await _visitTaskRepository.BatchUpdateNoTrackingAsync(t => t.SubjectId == command.SubjectId && t.DoctorUserId == command.DoctorUserId && t.ArmEnum == command.ArmEnum, u => new VisitTask()
                 {
                     AllocateTime=null,
                     DoctorUserId=null,