openapi: 3.1.0
info:
  title: SAP Sales and Distribution (SD) SAP Sales Inquiry API
  description: >-
    Read sales inquiries from SAP S/4HANA. This OData service
    (API_SALES_INQUIRY_SRV) provides access to sales inquiry documents used
    in the pre-sales process to capture customer interest in products or
    services. Inquiries can be converted to quotations or sales orders.
  version: 1.0.0
  contact:
    name: SAP Support
    url: https://support.sap.com
  license:
    name: SAP Developer License
    url: https://www.sap.com/about/agreements/product-use-and-support-terms.html
servers:
  - url: https://sandbox.api.sap.com/s4hanacloud/sap/opu/odata/sap/API_SALES_INQUIRY_SRV
    description: SAP S/4HANA Cloud Sandbox
  - url: https://{host}:{port}/sap/opu/odata/sap/API_SALES_INQUIRY_SRV
    description: SAP S/4HANA On-Premise
    variables:
      host:
        default: localhost
      port:
        default: '443'
security:
  - basicAuth: []
  - oauth2: []
tags:
  - name: Sales Inquiry
    description: Operations on sales inquiry header (A_SalesInquiry)
  - name: Sales Inquiry Item
    description: Operations on sales inquiry items (A_SalesInquiryItem)
paths:
  /A_SalesInquiry:
    get:
      operationId: listSalesInquiries
      summary: Retrieve a list of sales inquiries
      description: >-
        Returns a collection of sales inquiry headers. Supports filtering by
        inquiry type, date, customer, and status.
      tags:
        - Sales Inquiry
      parameters:
        - $ref: '#/components/parameters/top'
        - $ref: '#/components/parameters/skip'
        - $ref: '#/components/parameters/filter'
        - $ref: '#/components/parameters/orderby'
        - $ref: '#/components/parameters/select'
        - $ref: '#/components/parameters/expand'
        - $ref: '#/components/parameters/inlinecount'
      responses:
        '200':
          description: Successfully retrieved sales inquiries
          content:
            application/json:
              schema:
                type: object
                properties:
                  d:
                    type: object
                    properties:
                      results:
                        type: array
                        items:
                          $ref: '#/components/schemas/SalesInquiry'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '500':
          $ref: '#/components/responses/InternalServerError'
    post:
      operationId: createSalesInquiry
      summary: Create a new sales inquiry
      description: >-
        Creates a new sales inquiry with deep insert support for items and partners.
      tags:
        - Sales Inquiry
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SalesInquiryCreate'
      responses:
        '201':
          description: Sales inquiry successfully created
          content:
            application/json:
              schema:
                type: object
                properties:
                  d:
                    $ref: '#/components/schemas/SalesInquiry'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /A_SalesInquiry('{SalesInquiry}'):
    get:
      operationId: getSalesInquiry
      summary: Retrieve a single sales inquiry
      description: >-
        Returns a single sales inquiry by its document number.
      tags:
        - Sales Inquiry
      parameters:
        - name: SalesInquiry
          in: path
          required: true
          description: Sales inquiry number (10 characters)
          schema:
            type: string
            maxLength: 10
        - $ref: '#/components/parameters/select'
        - $ref: '#/components/parameters/expand'
      responses:
        '200':
          description: Successfully retrieved the sales inquiry
          content:
            application/json:
              schema:
                type: object
                properties:
                  d:
                    $ref: '#/components/schemas/SalesInquiry'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
    patch:
      operationId: updateSalesInquiry
      summary: Update a sales inquiry
      description: >-
        Updates an existing sales inquiry header.
      tags:
        - Sales Inquiry
      parameters:
        - name: SalesInquiry
          in: path
          required: true
          description: Sales inquiry number
          schema:
            type: string
            maxLength: 10
        - $ref: '#/components/parameters/ifMatch'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SalesInquiryUpdate'
      responses:
        '204':
          description: Sales inquiry successfully updated
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
    delete:
      operationId: deleteSalesInquiry
      summary: Delete a sales inquiry
      description: >-
        Deletes an existing sales inquiry.
      tags:
        - Sales Inquiry
      parameters:
        - name: SalesInquiry
          in: path
          required: true
          description: Sales inquiry number
          schema:
            type: string
            maxLength: 10
        - $ref: '#/components/parameters/ifMatch'
      responses:
        '204':
          description: Sales inquiry successfully deleted
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /A_SalesInquiry('{SalesInquiry}')/to_Item:
    get:
      operationId: listSalesInquiryItems
      summary: Retrieve items for a sales inquiry
      description: >-
        Returns a collection of line items for the specified sales inquiry.
      tags:
        - Sales Inquiry Item
      parameters:
        - name: SalesInquiry
          in: path
          required: true
          description: Sales inquiry number
          schema:
            type: string
            maxLength: 10
        - $ref: '#/components/parameters/top'
        - $ref: '#/components/parameters/skip'
        - $ref: '#/components/parameters/select'
      responses:
        '200':
          description: Successfully retrieved inquiry items
          content:
            application/json:
              schema:
                type: object
                properties:
                  d:
                    type: object
                    properties:
                      results:
                        type: array
                        items:
                          $ref: '#/components/schemas/SalesInquiryItem'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
    oauth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://{tenant}.authentication.{landscape}.hana.ondemand.com/oauth/token
          scopes:
            API_SALES_INQUIRY_SRV: Access to Sales Inquiry API
  parameters:
    top:
      name: $top
      in: query
      schema:
        type: integer
        minimum: 0
    skip:
      name: $skip
      in: query
      schema:
        type: integer
        minimum: 0
    filter:
      name: $filter
      in: query
      schema:
        type: string
    orderby:
      name: $orderby
      in: query
      schema:
        type: string
    select:
      name: $select
      in: query
      schema:
        type: string
    expand:
      name: $expand
      in: query
      schema:
        type: string
    inlinecount:
      name: $inlinecount
      in: query
      schema:
        type: string
        enum:
          - allpages
          - none
    ifMatch:
      name: If-Match
      in: header
      required: true
      schema:
        type: string
  schemas:
    SalesInquiry:
      type: object
      description: Sales inquiry header entity (A_SalesInquiry)
      properties:
        SalesInquiry:
          type: string
          maxLength: 10
          description: Sales inquiry number
        SalesInquiryType:
          type: string
          maxLength: 4
          description: Sales document type
        SalesOrganization:
          type: string
          maxLength: 4
          description: Sales organization
        DistributionChannel:
          type: string
          maxLength: 2
          description: Distribution channel
        OrganizationDivision:
          type: string
          maxLength: 2
          description: Division
        SoldToParty:
          type: string
          maxLength: 10
          description: Sold-to party
        CreationDate:
          type: string
          format: date
          description: Creation date
        SalesInquiryDate:
          type: string
          format: date
          description: Document date
        BindingPeriodValidityStartDate:
          type: string
          format: date
          description: Valid-from date
        BindingPeriodValidityEndDate:
          type: string
          format: date
          description: Valid-to date
        TotalNetAmount:
          type: string
          description: Net value in document currency
        TransactionCurrency:
          type: string
          maxLength: 5
          description: Document currency
        SDDocumentReason:
          type: string
          maxLength: 3
          description: Order reason
        PurchaseOrderByCustomer:
          type: string
          maxLength: 35
          description: Customer reference
        OverallSDProcessStatus:
          type: string
          maxLength: 1
          description: Overall processing status
    SalesInquiryCreate:
      type: object
      required:
        - SalesInquiryType
        - SalesOrganization
        - DistributionChannel
        - OrganizationDivision
      properties:
        SalesInquiryType:
          type: string
          maxLength: 4
        SalesOrganization:
          type: string
          maxLength: 4
        DistributionChannel:
          type: string
          maxLength: 2
        OrganizationDivision:
          type: string
          maxLength: 2
        SoldToParty:
          type: string
          maxLength: 10
        SalesInquiryDate:
          type: string
          format: date
        to_Item:
          type: object
          properties:
            results:
              type: array
              items:
                $ref: '#/components/schemas/SalesInquiryItemCreate'
    SalesInquiryUpdate:
      type: object
      properties:
        PurchaseOrderByCustomer:
          type: string
          maxLength: 35
        BindingPeriodValidityEndDate:
          type: string
          format: date
    SalesInquiryItem:
      type: object
      description: Sales inquiry item entity (A_SalesInquiryItem)
      properties:
        SalesInquiry:
          type: string
          maxLength: 10
          description: Sales inquiry number
        SalesInquiryItem:
          type: string
          maxLength: 6
          description: Item number
        Material:
          type: string
          maxLength: 40
          description: Material number
        RequestedQuantity:
          type: string
          description: Order quantity
        RequestedQuantityUnit:
          type: string
          maxLength: 3
          description: Sales unit
        NetAmount:
          type: string
          description: Net value
        TransactionCurrency:
          type: string
          maxLength: 5
          description: Document currency
        Plant:
          type: string
          maxLength: 4
          description: Plant
        MaterialGroup:
          type: string
          maxLength: 9
          description: Material group
    SalesInquiryItemCreate:
      type: object
      properties:
        Material:
          type: string
          maxLength: 40
        RequestedQuantity:
          type: string
        RequestedQuantityUnit:
          type: string
          maxLength: 3
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: object
              properties:
                lang:
                  type: string
                value:
                  type: string
  responses:
    BadRequest:
      description: Bad 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'
    InternalServerError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'