diff --git a/IRaCIS.Core.Application/Service/Document/AuditDocumentService.cs b/IRaCIS.Core.Application/Service/Document/AuditDocumentService.cs
index 5a889bac6..6af34842c 100644
--- a/IRaCIS.Core.Application/Service/Document/AuditDocumentService.cs
+++ b/IRaCIS.Core.Application/Service/Document/AuditDocumentService.cs
@@ -149,9 +149,22 @@ public class AuditDocumentService(IRepository<AuditDocument> _auditDocumentRepos
     }
 
     [HttpPut]
-    public async Task<IResponseOutput> DeleteAuditRecordUser(DeleteAuditUserCommand inCommand)
+    public async Task<IResponseOutput> AddOrDeleteAuditRecordUser(AddOrDeleteAuditUserCommand inCommand)
     {
-        await _auditRecordIdentityUserRepository.BatchDeleteNoTrackingAsync(t => t.AuditRecordId == inCommand.AuditRecordId && inCommand.IdentityUserIdList.Contains(t.IdentityUserId));
+        if (inCommand.IsAdd)
+        {
+            foreach (var identityUserId in inCommand.IdentityUserIdList)
+            {
+                await _auditRecordIdentityUserRepository.AddAsync(new AuditRecordIdentityUser() { AuditRecordId = inCommand.AuditRecordId, IdentityUserId = identityUserId });
+            }
+        }
+        else
+        {
+            await _auditRecordIdentityUserRepository.BatchDeleteNoTrackingAsync(t => t.AuditRecordId == inCommand.AuditRecordId && inCommand.IdentityUserIdList.Contains(t.IdentityUserId));
+
+        }
+
+        await _auditRecordIdentityUserRepository.SaveChangesAsync();
 
         return ResponseOutput.Ok();
     }
diff --git a/IRaCIS.Core.Application/Service/Document/DTO/AuditDocumentViewModel.cs b/IRaCIS.Core.Application/Service/Document/DTO/AuditDocumentViewModel.cs
index 98e251f13..4ade36b57 100644
--- a/IRaCIS.Core.Application/Service/Document/DTO/AuditDocumentViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Document/DTO/AuditDocumentViewModel.cs
@@ -49,14 +49,16 @@ public class AuditRecordAddOrEdit
 
     public AuditType AuditType { get; set; }
 
-    public List<Guid> IdnetityUserIdList { get; set; }
+    //public List<Guid> IdnetityUserIdList { get; set; }
 }
 
-public class DeleteAuditUserCommand
+public class AddOrDeleteAuditUserCommand
 {
     public Guid AuditRecordId { get; set; }
 
     public List<Guid> IdentityUserIdList { get; set; }
+
+    public bool IsAdd { get; set; }
 }
 
 public class AuditRecordQuery : PageInput