diff --git a/CHANGELOG.md b/CHANGELOG.md
index 044722b6..a3832f95 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 - update @motionpicture/gmo-service
 - 施設コンテンツのcoaInfoを拡張
 - 施設コンテンツのlocationを最適化(kanaNameを廃止)
+- 資産取引を最適化(agent)
 
 ### Deprecated
 
diff --git a/src/action/reserve.ts b/src/action/reserve.ts
index 8a54f1c4..c0f2d6f5 100644
--- a/src/action/reserve.ts
+++ b/src/action/reserve.ts
@@ -1,7 +1,6 @@
 import * as ActionFactory from '../action';
 import { ActionType } from '../actionType';
 import { AssetTransactionType } from '../assetTransactionType';
-import { OrderType } from '../order';
 import { IAvailableReservationStatusType } from '../reservation';
 import { IReservationFor as IBusReservationFor } from '../reservation/busReservation';
 import { IReservationFor as IEventReservationFor } from '../reservation/event';
@@ -14,28 +13,16 @@ export type IAgent = ActionFactory.IParticipantAsProject;
 export type IReservationFor = (Pick<IBusReservationFor, 'id' | 'typeOf'> | Pick<IEventReservationFor, 'id' | 'typeOf'>) & {
     optimized: boolean;
 };
-// ReservationPackageに拡張(2022-12-22~)
-export interface IReservationPackageAsObject {
+// IReservationPackageAsObject以外を廃止(2023-01-19~)
+export interface IObject {
     reservationFor: IReservationFor;
     reservationNumber: string;
     reservationStatus: IAvailableReservationStatusType;
-    // 不要なので廃止(2023-01-19~)
-    // subReservation?: ISubReservation[];
-    // 不要なので廃止(2023-05-31~)→予約取引から取得に変更
-    // underName?: IUnderName;
     typeOf: ReservationType.ReservationPackage;
 }
-// IReservationPackageAsObject以外を廃止(2023-01-19~)
-// export type IObject = IBusReservation | IEventReservation | IReservationPackageAsObject;
-export type IObject = IReservationPackageAsObject;
 export interface IResult {
     confirmedReservationId?: string;
 }
-export interface IOrderAsReservePurpose {
-    typeOf: OrderType.Order;
-    confirmationNumber?: string;
-    orderNumber?: string;
-}
 export interface IAssetTransactionAsReservePurpose {
     /**
      * 取引タイプ
diff --git a/src/assetTransaction.ts b/src/assetTransaction.ts
index 747fc4b5..33fe1b71 100644
--- a/src/assetTransaction.ts
+++ b/src/assetTransaction.ts
@@ -3,7 +3,6 @@ import { IExtendId } from './autoGenerated';
 import { OrganizationType } from './organizationType';
 import { PersonType } from './personType';
 import { SortType } from './sortType';
-import { IIdentifier } from './thing';
 import { TransactionStatusType } from './transactionStatusType';
 import { TransactionTasksExportationStatus } from './transactionTasksExportationStatus';
 
@@ -17,7 +16,7 @@ export interface IAgentAsSeller {
      * 名称は必須
      */
     name: string;
-    identifier?: IIdentifier;
+    // identifier?: IIdentifier; // 廃止(2024-03-05~)
 }
 /**
  * 管理者主体
@@ -29,7 +28,7 @@ export interface IAgentAsPerson {
      * 名称は必須
      */
     name: string;
-    identifier?: IIdentifier;
+    // identifier?: IIdentifier; // 廃止(2024-03-05~)
 }
 /**
  * 資産取引主体は販売者or管理者
@@ -82,7 +81,6 @@ export interface IStartParams<T extends AssetTransactionType, TAgent extends IAg
  * 資産取引属性
  */
 export type IAttributes<TStartParams, TResult, TError, TPotentialActions> = TStartParams & {
-    purpose?: any;
     /**
      * 取引状態
      */
diff --git a/src/assetTransaction/reserve.ts b/src/assetTransaction/reserve.ts
index 89d03fb1..b93d5baa 100644
--- a/src/assetTransaction/reserve.ts
+++ b/src/assetTransaction/reserve.ts
@@ -4,6 +4,7 @@ import { ActionType } from '../actionType';
 import * as AssetTransactionFactory from '../assetTransaction';
 import { AssetTransactionType } from '../assetTransactionType';
 import { IExtendId } from '../autoGenerated';
+import { IOrder } from '../order';
 import { IPropertyValue } from '../propertyValue';
 import * as ReservationFactory from '../reservation';
 import {
@@ -193,8 +194,6 @@ export interface IAcceptedTicketOfferWithoutDetail {
      * 受入アドオン
      */
     addOn?: IAcceptedAddOn[];
-    // 不要なので廃止(2023-02-08~)
-    // paymentMethod?: IAcceptedPaymentMethod;
     additionalProperty?: IPropertyValue<string>[];
     priceSpecification?: {
         appliesToMovieTicket?: IAcceptedAppliesToMovieTicket;
@@ -210,10 +209,11 @@ export interface IAcceptedOffer4object {
         appliesToMovieTicket?: IAcceptedAppliesToMovieTicket;
     };
 }
+export type IOrderAsReservePurpose = Pick<IOrder, 'confirmationNumber' | 'orderNumber' | 'typeOf'>;
 export interface IPotentialActionsParams {
     reserve?: {
         // purposeの指定があれば、注文情報を予約へ自動連携
-        purpose?: ReserveActionFactory.IOrderAsReservePurpose;
+        purpose?: IOrderAsReservePurpose;
     };
 }
 /**
@@ -222,13 +222,6 @@ export interface IPotentialActionsParams {
 export interface IConfirmParams {
     id?: string;
     transactionNumber?: string;
-    // 不要なので廃止(2022-12-14~)
-    // object?: {
-    //     /**
-    //      * 最終的な予約の属性を指定
-    //      */
-    //     reservations: IConfirmingReservation[];
-    // };
     potentialActions?: IPotentialActionsParams;
 }
 // tslint:disable-next-line:no-empty-interface
@@ -243,7 +236,6 @@ export interface IObjectWithoutDetail {
     broker?: ReservationFactory.IBroker;
     reservationFor?: { id: string };
 }
-// IReservationForを最適化
 export type IReservationFor = IBusReservationReservationFor | IEventReservationReservationFor;
 // reservationStatusは不要なので削除(2023-07-19~)
 export type IOmittedReservationProperty = 'reservationFor' | 'broker' | 'issuedThrough' | 'provider' | 'reservationStatus';
diff --git a/src/assetTransactionType.ts b/src/assetTransactionType.ts
index 51e135db..77c03fda 100644
--- a/src/assetTransactionType.ts
+++ b/src/assetTransactionType.ts
@@ -11,12 +11,11 @@ export enum AssetTransactionType {
      */
     Reserve = 'Reserve',
     /**
-     * 予約キャンセル
+     * 予約取消
      */
     CancelReservation = 'CancelReservation',
     /**
      * 決済
-     * PaymentMethod: PaymentCard,CreditCard...
      */
     Pay = 'Pay',
     /**