diff --git a/src/modules/cart/interfaces/cart.interface.ts b/src/modules/cart/interfaces/cart.interface.ts
index c786356..b281661 100644
--- a/src/modules/cart/interfaces/cart.interface.ts
+++ b/src/modules/cart/interfaces/cart.interface.ts
@@ -1,4 +1,4 @@
-import type { OrderCouponDetail, OrderUserAddress, OrderCarAddress } from 'src/modules/orders/interface/order-status';
+import type { OrderCouponDetail, OrderUserAddress, OrderCarAddress } from 'src/modules/orders/interface/order.interface';
 
 export interface CartItem {
   foodId: string;
diff --git a/src/modules/cart/providers/cart.service.ts b/src/modules/cart/providers/cart.service.ts
index 8d6abb0..40f539f 100644
--- a/src/modules/cart/providers/cart.service.ts
+++ b/src/modules/cart/providers/cart.service.ts
@@ -18,7 +18,7 @@ import { Delivery } from '../../delivery/entities/delivery.entity';
 import { DeliveryMethodEnum } from '../../delivery/interface/delivery';
 import { Cart, CartItem } from '../interfaces/cart.interface';
 import { CouponService } from 'src/modules/coupons/providers/coupon.service';
-import { OrderCouponDetail } from 'src/modules/orders/interface/order-status';
+import { OrderCouponDetail } from 'src/modules/orders/interface/order.interface';
 import { CouponType } from 'src/modules/coupons/interface/coupon';
 import { UserWallet } from 'src/modules/users/entities/user-wallet.entity';
 import { PaymentMethodEnum } from 'src/modules/payments/interface/payment';
@@ -223,8 +223,8 @@ export class CartService {
     const cart = await this.findOneOrFail(userId, restaurantId);
 
     const paymentMethod = await this.getEnabledPaymentMethodOrFail(restaurantId, setPaymentMethodDto.paymentMethodId);
-     if (paymentMethod.method === PaymentMethodEnum.Wallet) {
-       await this.assertWalletHasEnoughBalance(userId, restaurantId, cart.total);
+    if (paymentMethod.method === PaymentMethodEnum.Wallet) {
+      await this.assertWalletHasEnoughBalance(userId, restaurantId, cart.total);
     }
     cart.paymentMethodId = setPaymentMethodDto.paymentMethodId;
     return this.recalculateAndSaveCart(cart);
diff --git a/src/modules/inventory/const/reservation.ts b/src/modules/inventory/const/reservation.ts
new file mode 100644
index 0000000..18f394a
--- /dev/null
+++ b/src/modules/inventory/const/reservation.ts
@@ -0,0 +1,7 @@
+import { PaymentMethodEnum } from "src/modules/payments/interface/payment";
+
+export const STOCK_RESERVE_MINUTES: Record<PaymentMethodEnum, number> = {
+    [PaymentMethodEnum.Online]: 15,
+    [PaymentMethodEnum.Cash]: 120,
+    [PaymentMethodEnum.Wallet]: 15,
+  };
\ No newline at end of file
diff --git a/src/modules/inventory/dto/bulk-reserve-food.dto.ts b/src/modules/inventory/dto/bulk-reserve-food.dto.ts
index edbdd32..a67965f 100644
--- a/src/modules/inventory/dto/bulk-reserve-food.dto.ts
+++ b/src/modules/inventory/dto/bulk-reserve-food.dto.ts
@@ -15,11 +15,6 @@ export class BulkReserveFoodItemDto {
   @Type(() => Number)
   quantity!: number;
 
-  @ApiProperty({ example: '2024-12-31T23:59:59Z', description: 'Reservation expiration date' })
-  @IsNotEmpty()
-  @IsDate()
-  @Type(() => Date)
-  expiresAt!: Date;
 }
 
 export class BulkReserveFoodDto {
diff --git a/src/modules/inventory/inteface/reservation.ts b/src/modules/inventory/inteface/reservation.ts
index 411575c..c3f8f5a 100644
--- a/src/modules/inventory/inteface/reservation.ts
+++ b/src/modules/inventory/inteface/reservation.ts
@@ -2,3 +2,5 @@ export enum ReservationStatus {
   ACTIVE = 'active',
   CONFIRMED = 'confirmed',
 }
+
+
diff --git a/src/modules/inventory/inventory.module.ts b/src/modules/inventory/inventory.module.ts
index 8cf8f75..d333b5a 100644
--- a/src/modules/inventory/inventory.module.ts
+++ b/src/modules/inventory/inventory.module.ts
@@ -10,5 +10,6 @@ import { JwtModule } from '@nestjs/jwt';
   imports: [MikroOrmModule.forFeature([Inventory]), AuthModule, JwtModule],
   controllers: [InventoryController],
   providers: [InventoryService],
+  exports: [InventoryService],
 })
 export class InventoryModule {}
diff --git a/src/modules/inventory/inventory.service.ts b/src/modules/inventory/inventory.service.ts
index d01135b..aa9ad9a 100644
--- a/src/modules/inventory/inventory.service.ts
+++ b/src/modules/inventory/inventory.service.ts
@@ -9,6 +9,8 @@ import { Food } from '../foods/entities/food.entity';
 import { Restaurant } from '../restaurants/entities/restaurant.entity';
 import { Order } from '../orders/entities/order.entity';
 import { ReservationStatus } from './inteface/reservation';
+import { STOCK_RESERVE_MINUTES } from './const/reservation';
+import { PaymentMethodEnum } from '../payments/interface/payment';
 
 @Injectable()
 export class InventoryService {
@@ -59,8 +61,8 @@ export class InventoryService {
   }
 
   async bulkSetStockForFoods(restaurantId: string, bulkSetStockDto: BulkSetStockDto): Promise<Inventory[]> {
+   
     const { items } = bulkSetStockDto;
-
     // Validate all items first
     for (const item of items) {
       if (item.availableStock > item.totalStock) {
@@ -134,17 +136,19 @@ export class InventoryService {
   }
 
   async tempBulkReserveFood(
+    em: EntityManager,
     restaurantId: string,
     orderId: string,
+    paymentMethod: PaymentMethodEnum,
     bulkReserveFoodDto: BulkReserveFoodDto,
   ): Promise<Reservation[]> {
     const { items } = bulkReserveFoodDto;
-
+    const expiresAt = this.getReservationExpiry(paymentMethod);
     // Get all unique food IDs
     const foodIds = [...new Set(items.map(item => item.foodId))];
 
     // Load all foods in one query
-    const foods = await this.em.find(Food, { id: { $in: foodIds } }, { populate: ['restaurant'] });
+    const foods = await em.find(Food, { id: { $in: foodIds } }, { populate: ['restaurant'] });
 
     // Verify all foods exist and belong to the restaurant
     const foodMap = new Map<string, Food>();
@@ -162,13 +166,13 @@ export class InventoryService {
     }
 
     // Load order
-    const order = await this.em.findOne(Order, { id: orderId });
+    const order = await em.findOne(Order, { id: orderId });
     if (!order) {
       throw new NotFoundException(`Order with ID ${orderId} not found`);
     }
 
     // Load all existing inventories in one query
-    const existingInventories = await this.em.find(Inventory, {
+    const existingInventories = await em.find(Inventory, {
       food: { id: { $in: foodIds }, restaurant: { id: restaurantId } },
     });
 
@@ -196,11 +200,11 @@ export class InventoryService {
       }
 
       // Create reservation record
-      const reservation = this.em.create(Reservation, {
+      const reservation = em.create(Reservation, {
         food,
         order,
         quantity: item.quantity,
-        expiresAt: item.expiresAt,
+        expiresAt,
         status: ReservationStatus.ACTIVE,
       });
 
@@ -209,22 +213,36 @@ export class InventoryService {
       // Update available stock (decrease by quantity)
       inventory.availableStock -= item.quantity;
     }
-
-    // Flush all changes at once
-    await this.em.flush();
+  
 
     return reservations;
   }
 
-  async confirmReservationByOrderId(orderId: string): Promise<Reservation[]> {
-    const reservations = await this.em.find(Reservation, { order: { id: orderId } });
+  async confirmReservationByOrderId(em: EntityManager, orderId: string): Promise<Reservation[]> {
+    const reservations = await em.find(Reservation, { order: { id: orderId } });
     if (!reservations) {
       throw new NotFoundException(`Reservations with order ID ${orderId} not found`);
     }
     for (const reservation of reservations) {
       reservation.status = ReservationStatus.CONFIRMED;
     }
-    await this.em.flush();
     return reservations;
   }
+
+  async releaseReservationByOrderId(em: EntityManager, orderId: string): Promise<Reservation[]> {
+    const reservations = await em.find(Reservation, { order: { id: orderId } });
+    if (!reservations) {
+      throw new NotFoundException(`Reservations with order ID ${orderId} not found`);
+    }
+    for (const reservation of reservations) {
+      em.remove(reservation);
+    }
+    return reservations;
+  }
+
+  getReservationExpiry(method: PaymentMethodEnum): Date {
+    const minutes = STOCK_RESERVE_MINUTES[method] ?? 15;
+    return new Date(Date.now() + minutes * 60 * 1000);
+  }
+  
 }
diff --git a/src/modules/orders/controllers/orders.controller.ts b/src/modules/orders/controllers/orders.controller.ts
index ca805f7..d619517 100644
--- a/src/modules/orders/controllers/orders.controller.ts
+++ b/src/modules/orders/controllers/orders.controller.ts
@@ -6,7 +6,7 @@ import { UserId } from '../../../common/decorators/user-id.decorator';
 import { RestId } from 'src/common/decorators/rest-id.decorator';
 import { AdminAuthGuard } from '../../auth/guards/adminAuth.guard';
 import { FindOrdersDto } from '../dto/find-orders.dto';
-import { OrderStatus } from '../interface/order-status';
+import { OrderStatus } from '../interface/order.interface';
 
 @ApiTags('orders')
 @ApiBearerAuth()
diff --git a/src/modules/orders/dto/find-orders.dto.ts b/src/modules/orders/dto/find-orders.dto.ts
index 184dfd0..44714f6 100644
--- a/src/modules/orders/dto/find-orders.dto.ts
+++ b/src/modules/orders/dto/find-orders.dto.ts
@@ -1,7 +1,7 @@
 import { IsOptional, IsString, IsNumber, Min, IsIn, IsEnum, IsDateString } from 'class-validator';
 import { Type } from 'class-transformer';
 import { ApiPropertyOptional } from '@nestjs/swagger';
-import { OrderStatus } from '../interface/order-status';
+import { OrderStatus } from '../interface/order.interface';
 import { PaymentStatusEnum } from '../../payments/interface/payment';
 
 // Define the valid sort directions
diff --git a/src/modules/orders/entities/order.entity.ts b/src/modules/orders/entities/order.entity.ts
index c2ed379..e80e81f 100644
--- a/src/modules/orders/entities/order.entity.ts
+++ b/src/modules/orders/entities/order.entity.ts
@@ -13,13 +13,13 @@ import {
 } from '@mikro-orm/core';
 import { BaseEntity } from '../../../common/entities/base.entity';
 import { PaymentStatusEnum } from '../../payments/interface/payment';
-import { OrderCouponDetail, OrderStatus } from '../interface/order-status';
+import { OrderCouponDetail, OrderStatus } from '../interface/order.interface';
 import { User } from '../../users/entities/user.entity';
 import { Restaurant } from '../../restaurants/entities/restaurant.entity';
 import { PaymentMethod } from '../../payments/entities/payment-method.entity';
 import { OrderItem } from './order-item.entity';
 import { Delivery } from '../../delivery/entities/delivery.entity';
-import { OrderUserAddress, OrderCarAddress } from '../interface/order-status';
+import { OrderUserAddress, OrderCarAddress } from '../interface/order.interface';
 
 @Entity({ tableName: 'orders' })
 @Unique({ properties: ['restaurant', 'orderNumber'] })
diff --git a/src/modules/orders/interface/order-status.ts b/src/modules/orders/interface/order.interface.ts
similarity index 100%
rename from src/modules/orders/interface/order-status.ts
rename to src/modules/orders/interface/order.interface.ts
diff --git a/src/modules/orders/orders.module.ts b/src/modules/orders/orders.module.ts
index a64387e..04df38d 100644
--- a/src/modules/orders/orders.module.ts
+++ b/src/modules/orders/orders.module.ts
@@ -18,6 +18,7 @@ import { OrderRepository } from './repositories/order.repository';
 import { OrderListeners } from './listeners/order.listeners';
 import { AdminModule } from '../admin/admin.module';
 import { NotificationsModule } from '../notifications/notifications.module';
+import { InventoryModule } from '../inventory/inventory.module';
 
 @Module({
   imports: [
@@ -29,6 +30,7 @@ import { NotificationsModule } from '../notifications/notifications.module';
     JwtModule,
     AdminModule,
     NotificationsModule,
+    InventoryModule
   ],
   controllers: [OrdersController],
   providers: [OrdersService, OrderRepository, OrderListeners],
diff --git a/src/modules/orders/providers/orders.service.ts b/src/modules/orders/providers/orders.service.ts
index 74e004e..817d6f8 100644
--- a/src/modules/orders/providers/orders.service.ts
+++ b/src/modules/orders/providers/orders.service.ts
@@ -6,7 +6,7 @@ import { User } from '../../users/entities/user.entity';
 import { Restaurant } from '../../restaurants/entities/restaurant.entity';
 import { Food } from '../../foods/entities/food.entity';
 import { CartService } from '../../cart/providers/cart.service';
-import { OrderStatus, OrderUserAddress, OrderCarAddress } from '../interface/order-status';
+import { OrderStatus, OrderUserAddress, OrderCarAddress } from '../interface/order.interface';
 import { PaymentMethodEnum, PaymentStatusEnum } from '../../payments/interface/payment';
 import { Cart } from '../../cart/interfaces/cart.interface';
 import { PaymentMethod } from '../../payments/entities/payment-method.entity';
@@ -17,6 +17,8 @@ import { OrderRepository } from '../repositories/order.repository';
 import { FindOrdersDto } from '../dto/find-orders.dto';
 import { PaginatedResult } from 'src/common/interfaces/pagination.interface';
 import { Payment } from 'src/modules/payments/entities/payment.entity';
+import { InventoryService } from 'src/modules/inventory/inventory.service';
+import { BulkReserveFoodDto } from 'src/modules/inventory/dto/bulk-reserve-food.dto';
 
 type OrderItemData = { food: Food; quantity: number; unitPrice: number; discount: number };
 
@@ -53,6 +55,7 @@ export class OrdersService {
     private readonly cartService: CartService,
     private readonly orderRepository: OrderRepository,
     private readonly paymentsService: PaymentsService,
+    private readonly inventoryService: InventoryService,
   ) { }
 
   async checkout(userId: string, restaurantId: string) {
@@ -109,8 +112,16 @@ export class OrdersService {
         method: order.paymentMethod.method,
         gateway: order.paymentMethod.gateway ?? null,
       });
-      em.persist(payment);
 
+      em.persist(payment);
+      // reserve stock based on payment method.
+      const bulkReserveFoodDto: BulkReserveFoodDto = {
+        items: validated.orderItemsData.map(item => ({
+          foodId: item.food.id,
+          quantity: item.quantity,
+        })),
+      };
+      await this.inventoryService.tempBulkReserveFood(em, restaurantId, order.id, order.paymentMethod.method, bulkReserveFoodDto);
       await em.flush();
       this.logger.debug(`Order ${order.id} created for user ${userId} (restaurant ${restaurantId})`);
       return order;
diff --git a/src/modules/orders/repositories/order.repository.ts b/src/modules/orders/repositories/order.repository.ts
index 0db34f8..d27fcf9 100644
--- a/src/modules/orders/repositories/order.repository.ts
+++ b/src/modules/orders/repositories/order.repository.ts
@@ -3,7 +3,7 @@ import { EntityManager, EntityRepository } from '@mikro-orm/postgresql';
 import { FilterQuery } from '@mikro-orm/core';
 import { Order } from '../entities/order.entity';
 import { PaginatedResult } from 'src/common/interfaces/pagination.interface';
-import { OrderStatus } from '../interface/order-status';
+import { OrderStatus } from '../interface/order.interface';
 import { PaymentStatusEnum } from '../../payments/interface/payment';
 import { Review } from '../../review/entities/review.entity';
 
@@ -96,7 +96,7 @@ export class OrderRepository extends EntityRepository<Order> {
       limit,
       offset,
       orderBy: { [orderBy]: order.toLowerCase() as 'asc' | 'desc' },
-      populate: ['user', 'restaurant', 'deliveryMethod',   'paymentMethod', 'items', 'items.food'] as never,
+      populate: ['user', 'restaurant', 'deliveryMethod', 'paymentMethod', 'items', 'items.food'] as never,
     });
 
     // Collect all (orderId, foodId) pairs for efficient review lookup
diff --git a/src/modules/payments/payments.module.ts b/src/modules/payments/payments.module.ts
index 899f096..e8b2fa3 100644
--- a/src/modules/payments/payments.module.ts
+++ b/src/modules/payments/payments.module.ts
@@ -12,11 +12,14 @@ import { Payment } from './entities/payment.entity';
 import { ZarinpalGateway } from './gateways/zarinpal.gateway';
 import { GatewayManager } from './services/gateway.manager';
 import { PaymentRepository } from './repositories/payment.repository';
+import { InventoryModule } from '../inventory/inventory.module';
 
 @Module({
-  imports: [MikroOrmModule.forFeature([PaymentMethod, Payment, Restaurant]), AuthModule, JwtModule],
+  imports: [MikroOrmModule.forFeature([PaymentMethod, Payment, Restaurant]),
+    AuthModule, JwtModule, InventoryModule],
   controllers: [PaymentsController],
-  providers: [PaymentsService, PaymentMethodService, PaymentMethodRepository, PaymentRepository, ZarinpalGateway, GatewayManager],
+  providers: [PaymentsService, PaymentMethodService, PaymentMethodRepository,
+    PaymentRepository, ZarinpalGateway, GatewayManager],
   exports: [
     PaymentMethodRepository,
     PaymentRepository,
diff --git a/src/modules/payments/services/payments.service.ts b/src/modules/payments/services/payments.service.ts
index 4ff0d08..8d40e63 100644
--- a/src/modules/payments/services/payments.service.ts
+++ b/src/modules/payments/services/payments.service.ts
@@ -1,12 +1,14 @@
 import { BadRequestException, Injectable, NotFoundException } from '@nestjs/common';
 import { PaymentGatewayEnum, PaymentMethodEnum, PaymentStatusEnum } from '../interface/payment';
 import { Payment } from '../entities/payment.entity';
-import { EntityManager } from '@mikro-orm/core';
+import { EntityManager } from '@mikro-orm/postgresql';
 import { Order } from '../../orders/entities/order.entity';
 import { Logger } from '@nestjs/common';
 import { GatewayManager } from './gateway.manager';
 import { UserWallet } from 'src/modules/users/entities/user-wallet.entity';
 import { OrderPaymentContext } from '../interface/payment';
+import { InventoryService } from 'src/modules/inventory/inventory.service';
+import { OrderStatus } from 'src/modules/orders/interface/order.interface';
 
 @Injectable()
 export class PaymentsService {
@@ -15,6 +17,7 @@ export class PaymentsService {
   constructor(
     private readonly em: EntityManager,
     private readonly gatewayManager: GatewayManager,
+    private readonly inventoryService: InventoryService,
   ) { }
 
   async payOrder(
@@ -201,16 +204,12 @@ export class PaymentsService {
       payment.verifyResponse = result.raw;
 
       if (!result.success) {
-        payment.status = PaymentStatusEnum.Failed;
-        payment.failedAt = new Date();
-        payment.order.paymentStatus = PaymentStatusEnum.Failed;
-      } else {
-        payment.status = PaymentStatusEnum.Paid;
-        payment.referenceId = result.referenceId;
-        payment.cardPan = result.cardPan;
-        payment.paidAt = new Date();
-        payment.order.paymentStatus = PaymentStatusEnum.Paid;
+        this.failPayment(payment);
+        return payment;
       }
+      this.markPaid(payment);
+      this.confirmOrder(payment.order);
+      await this.confirmStock(orderId, em);
 
       await em.flush();
       return payment;
@@ -225,6 +224,28 @@ export class PaymentsService {
     );
   }
 
+  private markPaid(payment: Payment) {
+    payment.status = PaymentStatusEnum.Paid;
+    payment.paidAt = new Date();
+    payment.referenceId = payment.referenceId;
+    payment.order.paymentStatus = PaymentStatusEnum.Paid;
+  }
+
+  private failPayment(payment: Payment) {
+    payment.status = PaymentStatusEnum.Failed;
+    payment.failedAt = new Date();
+    payment.order.paymentStatus = PaymentStatusEnum.Failed;
+  }
+
+  private confirmOrder(order: Order) {
+    order.status = OrderStatus.PAID;
+  }
+
+  private async confirmStock(orderId: string, em: EntityManager) {
+    await this.inventoryService.confirmReservationByOrderId(em, orderId);
+  }
+
+
   private async getOrCreateLatestPendingPayment(
     orderId: string,
     params: {