University of Wisconsin–Madison

Purchase Orders

View the OpenAPI specification

Purchase orders are requests sent by the University to suppliers to order items.

The corresponding invoices that suppliers send in response are recorded as Supplier Invoices.

Note that the purchase orders endpoint currently has a glaring oversight in that it conflates line items with an entire purchase order. That is, if a purchase order is for a laptop, docking station, and extended warranty, the purchase orders endpoint would only show whichever line item was entered last. We are aware of this defect and plan on addressing it in a future sprint, hopefully some time before 2027. If you have thoughts on what might make purchase order data more useful or want to share how you use purchase orders today, please let us know.

Filters

This endpoint allows filtering on all attributes (see the Filters documentation for more information). As of August 2026, these attributes are:

  • accountingDate
  • company
  • costCenterId
  • description
  • extendedAmount
  • fiscalYear
  • fiscalYearNumber
  • functionId
  • fundId
  • giftId
  • goodsDocumentDate
  • goodsLocationName
  • grantId
  • id
  • issuedDate
  • journalSource
  • ledger
  • ledgerPeriod
  • lineType
  • locationId
  • paymentTerms
  • period
  • poId
  • poLineId
  • programId
  • projectId
  • requestorName
  • requestorRefId
  • requisitionLineId
  • shipToAddress
  • shipToContactName
  • spendCategoryId
  • status
  • supplierName
  • transactionDate
  • type
  • lastModified

Example response element

{
  "attributes": {
    "accountingDate": "2024-06-17",
    "company": "Company XYZ",
    "costCenterId": "CC005938",
    "description": "Office supplies purchase",
    "extendedAmount": 1500,
    "fiscalYear": 2024,
    "fiscalYearNumber": 2024,
    "functionId": "FN0700",
    "fundId": "FD0128",
    "giftId": "",
    "goodsDocumentDate": "2024-06-18",
    "goodsLocationName": "Warehouse 1",
    "grantId": "",
    "issuedDate": "2024-06-17",
    "journalSource": "Purchase Order",
    "ledger": "UWMSN University of Wisconsin Madison : Obligations",
    "ledgerPeriod": "Jun-2024 Obligations (UWMSN University of Wisconsin Madison)",
    "lineType": "Item",
    "locationId": "",
    "paymentTerms": "Net 30",
    "period": "Jun",
    "poId": "MSN0558780",
    "poLineId": "25b90ccc3a35902af0f7f1385f8a0000",
    "programId": "PG000019020",
    "projectId": "",
    "requestorName": "Jane Smith",
    "requestorRefId": 123456,
    "requisitionLineId": "RL001",
    "shipToAddress": "123 Main St, City, State",
    "shipToContactName": "John Doe",
    "spendCategoryId": "SC00115",
    "status": "Approved",
    "supplierName": "Supplier Inc.",
    "transactionDate": "2024-06-17",
    "type": "Standard"
  },
  "id": "PO-00062561",
  "links": {
    "self": "https://api.wisc.edu/finance/purchaseOrders/PO-00062561"
  },
  "meta": {
    "lastModified": "2026-06-15T13:11:13"
  },
  "type": "purchaseOrders"
}

Sample Filters

  • api.wisc.edu/finance/purchaseOrders?filter[fiscalYear]=GREATER_THAN:2025&filter[status]=Denied
  • api.wisc.edu/finance/purchaseOrders?filter[supplierName]=STARTS_WITH:Apple,STARTS_WITH:Dell&filter[extendedAmount]=GREATER_THAN:2000