openapi: 3.1.0
info:
  title: Oracle Retail Order Management Suite Cloud Service API
  description: >-
    Oracle Retail Order Management Suite Cloud Service (OMS) provides REST APIs for
    omnichannel order orchestration, fulfillment, sourcing, returns management, and
    customer service across digital and physical retail channels.
  version: 26.1.0
  contact:
    name: Oracle Retail Support
    url: https://support.oracle.com
  license:
    name: Oracle Technology Network License
    url: https://www.oracle.com/legal/terms/
servers:
  - url: https://{host}/oms/api/v1
    description: Oracle Retail OMS REST API
    variables:
      host:
        default: retail-oms.example.com

security:
  - oauth2: []

tags:
  - name: Fulfillment
    description: Fulfillment and sourcing operations
  - name: Orders
    description: Customer order management
  - name: Returns
    description: Returns and refunds management
paths:
  /orders:
    get:
      operationId: listOrders
      summary: List orders
      description: Returns customer orders with status, line items, and fulfillment details.
      tags:
        - Orders
      parameters:
        - name: status
          in: query
          description: Filter by order status
          schema:
            type: string
            enum: [CREATED, PAYMENT_PENDING, CONFIRMED, PROCESSING, SHIPPED, DELIVERED, CANCELLED, RETURNED]
        - name: channelId
          in: query
          description: Filter by sales channel
          schema:
            type: string
        - name: customerId
          in: query
          description: Filter by customer ID
          schema:
            type: string
        - name: fromDate
          in: query
          schema:
            type: string
            format: date-time
        - name: toDate
          in: query
          schema:
            type: string
            format: date-time
        - name: offset
          in: query
          schema:
            type: integer
            default: 0
        - name: limit
          in: query
          schema:
            type: integer
            default: 50
            maximum: 200
      responses:
        '200':
          description: Order list
          content:
            application/json:
              schema:
                type: object
                properties:
                  orders:
                    type: array
                    items:
                      $ref: '#/components/schemas/Order'
                  totalCount:
                    type: integer
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createOrder
      summary: Create an order
      description: Creates a new customer order for fulfillment.
      tags:
        - Orders
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/OrderCreate'
      responses:
        '201':
          description: Order created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Order'
        '400':
          $ref: '#/components/responses/BadRequest'

  /orders/{orderId}:
    get:
      operationId: getOrder
      summary: Get an order
      description: Returns full order details including lines, fulfillment nodes, and payment.
      tags:
        - Orders
      parameters:
        - $ref: '#/components/parameters/OrderId'
      responses:
        '200':
          description: Order detail
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/OrderDetail'
        '404':
          $ref: '#/components/responses/NotFound'
    patch:
      operationId: updateOrder
      summary: Update an order
      description: Updates mutable fields on an order such as shipping address or contact info.
      tags:
        - Orders
      parameters:
        - $ref: '#/components/parameters/OrderId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/OrderUpdate'
      responses:
        '200':
          description: Order updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Order'

  /orders/{orderId}/cancel:
    post:
      operationId: cancelOrder
      summary: Cancel an order
      description: Cancels an order or selected line items if order is in a cancellable state.
      tags:
        - Orders
      parameters:
        - $ref: '#/components/parameters/OrderId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                cancelReason:
                  type: string
                lineIds:
                  type: array
                  description: Specific line IDs to cancel; omit to cancel all
                  items:
                    type: string
      responses:
        '200':
          description: Cancellation processed
        '409':
          description: Order cannot be cancelled in current state

  /fulfillment/ship-order:
    post:
      operationId: shipOrder
      summary: Record a shipment
      description: Records a shipment event for fulfillment nodes, advancing order status.
      tags:
        - Fulfillment
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ShipmentRequest'
      responses:
        '200':
          description: Shipment recorded
        '400':
          $ref: '#/components/responses/BadRequest'

  /returns:
    post:
      operationId: createReturn
      summary: Create a return
      description: Initiates a customer return authorization for one or more order lines.
      tags:
        - Returns
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ReturnCreate'
      responses:
        '201':
          description: Return authorization created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Return'
        '400':
          $ref: '#/components/responses/BadRequest'

components:
  securitySchemes:
    oauth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://identity.oraclecloud.com/oauth2/v1/token
          scopes:
            oms.read: Read order data
            oms.write: Write order data

  parameters:
    OrderId:
      name: orderId
      in: path
      required: true
      description: Order identifier
      schema:
        type: string

  responses:
    BadRequest:
      description: Invalid request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Authentication required
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'

  schemas:
    Order:
      type: object
      properties:
        orderId:
          type: string
        externalOrderId:
          type: string
          description: Order ID from originating channel
        status:
          type: string
          enum: [CREATED, PAYMENT_PENDING, CONFIRMED, PROCESSING, SHIPPED, DELIVERED, CANCELLED, RETURNED]
        channelId:
          type: string
        customerId:
          type: string
        orderDate:
          type: string
          format: date-time
        currencyCode:
          type: string
          maxLength: 3
        subtotal:
          type: number
          format: double
        taxTotal:
          type: number
          format: double
        shippingTotal:
          type: number
          format: double
        discountTotal:
          type: number
          format: double
        orderTotal:
          type: number
          format: double
        shippingAddress:
          $ref: '#/components/schemas/Address'
        createDatetime:
          type: string
          format: date-time
        lastUpdateDatetime:
          type: string
          format: date-time

    OrderCreate:
      type: object
      required:
        - externalOrderId
        - channelId
        - customerId
        - currencyCode
        - lines
      properties:
        externalOrderId:
          type: string
        channelId:
          type: string
        customerId:
          type: string
        currencyCode:
          type: string
          maxLength: 3
        shippingAddress:
          $ref: '#/components/schemas/Address'
        lines:
          type: array
          items:
            $ref: '#/components/schemas/OrderLineCreate'

    OrderDetail:
      allOf:
        - $ref: '#/components/schemas/Order'
        - type: object
          properties:
            lines:
              type: array
              items:
                $ref: '#/components/schemas/OrderLine'

    OrderLine:
      type: object
      properties:
        lineId:
          type: string
        itemId:
          type: string
        itemDescription:
          type: string
        quantity:
          type: integer
        unitPrice:
          type: number
          format: double
        lineTotal:
          type: number
          format: double
        status:
          type: string
        fulfillmentType:
          type: string
          enum: [SHIP_TO_HOME, SHIP_TO_STORE, PICKUP_IN_STORE, DELIVERY]

    OrderLineCreate:
      type: object
      required:
        - itemId
        - quantity
        - unitPrice
      properties:
        itemId:
          type: string
        quantity:
          type: integer
        unitPrice:
          type: number
          format: double
        fulfillmentType:
          type: string
          enum: [SHIP_TO_HOME, SHIP_TO_STORE, PICKUP_IN_STORE, DELIVERY]
          default: SHIP_TO_HOME

    OrderUpdate:
      type: object
      properties:
        shippingAddress:
          $ref: '#/components/schemas/Address'
        contactEmail:
          type: string
          format: email
        contactPhone:
          type: string

    ShipmentRequest:
      type: object
      required:
        - orderId
        - trackingNumber
        - carrier
      properties:
        orderId:
          type: string
        lineIds:
          type: array
          items:
            type: string
        trackingNumber:
          type: string
        carrier:
          type: string
        shipDate:
          type: string
          format: date-time
        estimatedDeliveryDate:
          type: string
          format: date-time

    Return:
      type: object
      properties:
        returnId:
          type: string
        orderId:
          type: string
        status:
          type: string
          enum: [PENDING, APPROVED, RECEIVED, REFUNDED]
        lines:
          type: array
          items:
            type: object
            properties:
              lineId:
                type: string
              quantity:
                type: integer
              reason:
                type: string
        createDatetime:
          type: string
          format: date-time

    ReturnCreate:
      type: object
      required:
        - orderId
        - lines
      properties:
        orderId:
          type: string
        lines:
          type: array
          items:
            type: object
            required:
              - lineId
              - quantity
              - reason
            properties:
              lineId:
                type: string
              quantity:
                type: integer
              reason:
                type: string

    Address:
      type: object
      properties:
        firstName:
          type: string
        lastName:
          type: string
        address1:
          type: string
        address2:
          type: string
        city:
          type: string
        state:
          type: string
        postalCode:
          type: string
        country:
          type: string
          maxLength: 3
        phone:
          type: string
        email:
          type: string
          format: email

    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string