private void ProcessModify(AdObject obj, bool returnObject = true)
    {
        ActiveDirectoryObjectResult result = new ActiveDirectoryObjectResult()
        {
            Type     = obj.Type,
            Identity = obj.Identity
        };

        ActiveDirectoryStatus status = new ActiveDirectoryStatus()
        {
            Action  = config.Action,
            Status  = AdStatusType.Success,
            Message = "Success",
        };

        try
        {
            string statusAction = "Modified";

            switch (obj.Type)
            {
            case AdObjectType.User:
                AdUser        user = (AdUser)obj;
                UserPrincipal up   = null;
                if (config.UseUpsert && !DirectoryServices.IsExistingUser(obj.Identity))
                {
                    if (DirectoryServices.IsDistinguishedName(obj.Identity))
                    {
                        String path = DirectoryServices.GetParentPath(obj.Identity);
                        roleManager.CanPerformActionOrException(requestUser, ActionType.Create, path);
                        up           = user.CreateUserPrincipal();
                        statusAction = "Created";
                    }
                    else
                    {
                        throw new AdException($"Identity [{obj.Identity}] Must Be A Distinguished Name For User Creation.", AdStatusType.MissingInput);
                    }
                }
                else
                {
                    roleManager.CanPerformActionOrException(requestUser, ActionType.Modify, obj.Identity);
                    up = DirectoryServices.GetUserPrincipal(obj.Identity);
                    if (up == null)
                    {
                        throw new AdException($"User [{obj.Identity}] Not Found.", AdStatusType.DoesNotExist);
                    }
                    user.UpdateUserPrincipal(up);
                }

                DirectoryServices.SaveUser(up, isDryRun);

                OnLogMessage("ProcessModify", obj.Type + " [" + obj.Identity + "] " + statusAction + ".");
                if (user.Groups != null)
                {
                    ProcessGroupAdd(user, false);
                }
                result.Statuses.Add(status);
                break;

            case AdObjectType.Group:
                AdGroup        group = (AdGroup)obj;
                GroupPrincipal gp    = null;
                if (config.UseUpsert && !DirectoryServices.IsExistingGroup(obj.Identity))
                {
                    if (DirectoryServices.IsDistinguishedName(obj.Identity))
                    {
                        String path = DirectoryServices.GetParentPath(obj.Identity);
                        roleManager.CanPerformActionOrException(requestUser, ActionType.Create, path);
                        gp           = group.CreateGroupPrincipal();
                        statusAction = "Created";
                    }
                    else
                    {
                        throw new AdException($"Identity [{obj.Identity}] Must Be A Distinguished Name For Group Creation.", AdStatusType.MissingInput);
                    }
                }
                else
                {
                    roleManager.CanPerformActionOrException(requestUser, ActionType.Modify, obj.Identity);
                    gp = DirectoryServices.GetGroupPrincipal(obj.Identity);
                    if (gp == null)
                    {
                        throw new AdException($"Group [{obj.Identity}] Not Found.", AdStatusType.DoesNotExist);
                    }
                    group.UpdateGroupPrincipal(gp);
                }

                DirectoryServices.SaveGroup(gp, isDryRun);
                OnLogMessage("ProcessModify", obj.Type + " [" + obj.Identity + "] " + statusAction + ".");
                if (group.Groups != null)
                {
                    ProcessGroupAdd(group, false);
                }
                result.Statuses.Add(status);
                break;

            case AdObjectType.OrganizationalUnit:
                AdOrganizationalUnit ou = (AdOrganizationalUnit)obj;

                // Get DistinguishedName from User or Group Identity for ManagedBy Property
                if (!String.IsNullOrWhiteSpace(ou.ManagedBy))
                {
                    if (ou.Properties == null)
                    {
                        ou.Properties = new Dictionary <string, List <string> >();
                    }

                    if (!ou.Properties.ContainsKey("managedBy"))
                    {
                        String distinguishedName = DirectoryServices.GetDistinguishedName(ou.ManagedBy);
                        if (distinguishedName == null)
                        {
                            distinguishedName = ou.ManagedBy;
                        }

                        List <String> values = new List <string>()
                        {
                            distinguishedName
                        };
                        ou.Properties.Add("managedBy", values);
                    }
                }

                if (config.UseUpsert && !DirectoryServices.IsExistingDirectoryEntry(obj.Identity))
                {
                    if (DirectoryServices.IsDistinguishedName(obj.Identity))
                    {
                        String path = DirectoryServices.GetParentPath(obj.Identity);
                        roleManager.CanPerformActionOrException(requestUser, ActionType.Create, path);
                        if (!String.IsNullOrWhiteSpace(ou.Description))
                        {
                            DirectoryServices.AddProperty(ou.Properties, "description", ou.Description);
                        }
                        DirectoryServices.CreateOrganizationUnit(obj.Identity, ou.Properties, isDryRun);
                        statusAction = "Created";
                    }
                    else
                    {
                        throw new AdException($"Identity [{obj.Identity}] Must Be A Distinguished Name For Organizational Unit Creation.", AdStatusType.MissingInput);
                    }
                }
                else
                {
                    roleManager.CanPerformActionOrException(requestUser, ActionType.Modify, obj.Identity);
                    if (!String.IsNullOrWhiteSpace(ou.Description))
                    {
                        DirectoryServices.AddProperty(ou.Properties, "description", ou.Description);
                    }
                    DirectoryServices.ModifyOrganizationUnit(ou.Identity, ou.Properties, isDryRun);
                }

                OnLogMessage("ProcessModify", obj.Type + " [" + obj.Identity + "] " + statusAction + ".");
                result.Statuses.Add(status);
                break;

            default:
                throw new AdException("Action [" + config.Action + "] Not Implemented For Type [" + obj.Type + "]", AdStatusType.NotSupported);
            }

            if (returnObject)
            {
                result.Object = GetActiveDirectoryObject(obj);
            }
        }
        catch (AdException ex)
        {
            ProcessActiveDirectoryException(result, ex, status.Action);
        }
        catch (Exception e)
        {
            OnLogMessage("ProcessCreate", e.Message);
            OnLogMessage("ProcessCreate", e.StackTrace);
            AdException le = new AdException(e);
            ProcessActiveDirectoryException(result, le, status.Action);
        }

        results.Add(result);
    }