arazzo: 1.0.1
info:
  title: Oracle EBS Purchase Order Amendment
  summary: Find an approved purchase order, read its current state, and amend a line.
  description: >-
    A change-management flow for Oracle Purchasing. The workflow searches for a
    purchase order by number, reads it back to capture the line being changed,
    and submits an update that revises quantity and price on that line. Each
    step inlines its request so the amendment chain can be executed without
    opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: supplyChainApi
  url: ../openapi/supply-chain-api.yml
  type: openapi
workflows:
- workflowId: amend-purchase-order
  summary: Locate a purchase order by number and revise one of its lines.
  description: >-
    Searches for a purchase order by its number, reads it back to confirm the
    target line, and submits an update revising the quantity, price, and
    need-by date of that line.
  inputs:
    type: object
    required:
    - poNumber
    - newQuantity
    - newUnitPrice
    - newNeedByDate
    properties:
      poNumber:
        type: string
        description: Purchase order number (segment1) to amend.
      newQuantity:
        type: number
        description: Revised line quantity.
      newUnitPrice:
        type: number
        description: Revised line unit price.
      newNeedByDate:
        type: string
        description: Revised need-by date in YYYY-MM-DD format.
  steps:
  - stepId: findPurchaseOrder
    description: >-
      Search for an approved purchase order matching the supplied number,
      returning the first match.
    operationId: getPurchaseOrders
    parameters:
    - name: segment1
      in: query
      value: $inputs.poNumber
    - name: authorizationStatus
      in: query
      value: APPROVED
    - name: limit
      in: query
      value: 1
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      poHeaderId: $response.body#/items/0/poHeaderId
  - stepId: readPurchaseOrder
    description: >-
      Read the matched purchase order by header identifier to capture the line
      being amended.
    operationId: getPurchaseOrderById
    parameters:
    - name: poHeaderId
      in: path
      value: $steps.findPurchaseOrder.outputs.poHeaderId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      poLineId: $response.body#/lines/0/poLineId
  - stepId: updateLine
    description: >-
      Submit the purchase order update revising the captured line with the new
      quantity, price, and need-by date.
    operationId: updatePurchaseOrder
    parameters:
    - name: poHeaderId
      in: path
      value: $steps.findPurchaseOrder.outputs.poHeaderId
    requestBody:
      contentType: application/json
      payload:
        lines:
        - poLineId: $steps.readPurchaseOrder.outputs.poLineId
          quantity: $inputs.newQuantity
          unitPrice: $inputs.newUnitPrice
          needByDate: $inputs.newNeedByDate
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      authorizationStatus: $response.body#/authorizationStatus
      lastUpdateDate: $response.body#/lastUpdateDate
  outputs:
    poHeaderId: $steps.findPurchaseOrder.outputs.poHeaderId
    poLineId: $steps.readPurchaseOrder.outputs.poLineId
    authorizationStatus: $steps.updateLine.outputs.authorizationStatus