arazzo: 1.0.1
info:
  title: Workday Finance Supplier Invoice From Purchase Order
  summary: Read a purchase order, confirm its supplier, then create a matching supplier invoice.
  description: >-
    The accounts payable side of procure-to-pay. The workflow reads an existing
    purchase order to recover its supplier and total amount, reads the supplier
    to confirm it is active, and then creates a supplier invoice that references
    the same supplier. Each step spells out its request inline so the flow can
    be read and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: procurementApi
  url: ../openapi/workday-finance-procurement-openapi.yml
  type: openapi
workflows:
- workflowId: supplier-invoice-from-purchase-order
  summary: Turn a purchase order into a supplier invoice for the same supplier.
  description: >-
    Reads the purchase order, confirms the referenced supplier, and creates a
    supplier invoice carrying the invoice number and total amount supplied by
    the caller.
  inputs:
    type: object
    required:
    - token
    - purchaseOrderId
    - invoiceNumber
    - totalAmount
    properties:
      token:
        type: string
        description: OAuth 2.0 bearer access token for the Workday tenant.
      purchaseOrderId:
        type: string
        description: The unique identifier of the purchase order to invoice.
      invoiceNumber:
        type: string
        description: The supplier-provided invoice number.
      totalAmount:
        type: number
        description: The total amount of the supplier invoice.
      invoiceDate:
        type: string
        description: The invoice date (YYYY-MM-DD).
      dueDate:
        type: string
        description: The payment due date (YYYY-MM-DD).
      currency:
        type: string
        description: The ISO currency code for the invoice.
  steps:
  - stepId: getPurchaseOrder
    description: >-
      Read the purchase order to recover the supplier reference and total
      amount before invoicing.
    operationId: getPurchaseOrder
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.token
    - name: purchaseOrderId
      in: path
      value: $inputs.purchaseOrderId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      supplierId: $response.body#/supplier/id
      totalAmount: $response.body#/totalAmount
  - stepId: getSupplier
    description: >-
      Confirm the supplier referenced by the purchase order exists and is
      active before raising an invoice.
    operationId: getSupplier
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.token
    - name: supplierId
      in: path
      value: $steps.getPurchaseOrder.outputs.supplierId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      supplierId: $response.body#/id
      status: $response.body#/status
    onSuccess:
    - name: supplierActive
      type: goto
      stepId: createSupplierInvoice
      criteria:
      - context: $response.body
        condition: $.status == "active"
        type: jsonpath
    - name: supplierInactive
      type: end
      criteria:
      - context: $response.body
        condition: $.status != "active"
        type: jsonpath
  - stepId: createSupplierInvoice
    description: >-
      Create a supplier invoice referencing the confirmed supplier with the
      supplied invoice number and total amount.
    operationId: createSupplierInvoice
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.token
    requestBody:
      contentType: application/json
      payload:
        supplier: $steps.getSupplier.outputs.supplierId
        invoiceNumber: $inputs.invoiceNumber
        invoiceDate: $inputs.invoiceDate
        dueDate: $inputs.dueDate
        totalAmount: $inputs.totalAmount
        currency: $inputs.currency
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      invoiceId: $response.body#/id
      invoiceNumber: $response.body#/invoiceNumber
      status: $response.body#/status
  outputs:
    supplierId: $steps.getSupplier.outputs.supplierId
    invoiceId: $steps.createSupplierInvoice.outputs.invoiceId
    invoiceStatus: $steps.createSupplierInvoice.outputs.status