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SAP Ariba Invoices API

Process and manage invoices including creation, approval workflows, status tracking, and payment reconciliation.

SAP Ariba Invoices API is one of 78 APIs that SAP Ariba publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 1 JSON Schema definition.

Tagged areas include Invoices. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a JSON-LD context, authentication docs, and 1 JSON Schema.

This API exposes 5 operations across 4 paths, and defines 14 schemas. It is described by OpenAPI 3.1.0, at version 1.0.0.

Requests are made against 2 base URLs: https://openapi.ariba.com/api/procurement/v1, https://sandbox.ariba.com/api/procurement/v1.

5 operations 4 paths 14 schemas 2 GET3 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
1.0.0
Base URL
https://openapi.ariba.com/api/procurement
Authentication
OAuth 2.0
Terms of Service
Resource Areas
1

Authentication & Security 1

SAP Ariba Invoices API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (oauth2) using the clientCredentials flow. By default, every request must be authenticated.

  • oauth2 — OAuth 2.0 Client Credentials flow for SAP Ariba API authentication. Obtain client credentials from the SAP Ariba Developer Portal.

Paths & Operations 5

Across 4 paths, the API surfaces 5 operations — 2 GET, 3 POST. Each is listed below with its method, path, parameters, and response codes.

Invoices 5

Process and manage invoices including creation, approval workflows, status tracking, and payment reconciliation.

GET
/invoices
List Invoices
listInvoices 10 params → 200400401403429500
POST
/invoices
Create an Invoice
createInvoice 1 param body → 201400401403409422429500
GET
/invoices/{invoiceId}
Get an Invoice
getInvoice 2 params → 200401403404429500
POST
/invoices/{invoiceId}/approve
Approve an Invoice
approveInvoice 2 params body → 200401403404409429500
POST
/invoices/{invoiceId}/reject
Reject an Invoice
rejectInvoice 2 params body → 200401403404409429500

Schemas 14

The contract defines 14 schemas that model the data the API accepts and returns. The most detailed are Invoice (24 properties), InvoiceCreate (14 properties), InvoiceLineItem (14 properties), Address (8 properties). Each schema is shown below with its type and property counts.

InvoiceListResponse
object
Paginated list of invoices
4 properties
Money
object
Monetary amount with currency code following ISO 4217
2 properties 2 required
Address
object
Postal address structure used for shipping, billing, and company addresses
8 properties
ErrorResponse
object
Standard error response structure
1 property 1 required
SupplierReference
object
Reference to a supplier on the SAP Ariba Network
3 properties 1 required
InvoiceStatus
string
Status of an invoice in the processing lifecycle
UnitOfMeasure
object
Unit of measure specification following UN/ECE Recommendation 20 standard codes
2 properties 1 required
PaymentTerms
object
Payment terms governing when and how invoices should be paid
5 properties
TaxDetail
object
Tax calculation details for an invoice or line item
6 properties
InvoiceLineItem
object
A line item on an invoice
14 properties 5 required
BuyerReference
object
Reference to a buyer organization
3 properties
CommodityCode
object
UNSPSC commodity classification code
3 properties 1 required
Invoice
object
An invoice document submitted by a supplier for goods or services delivered against a purchase order
24 properties 6 required
InvoiceCreate
object
Request body for creating a new invoice
14 properties 6 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

sap-ariba-invoices-api-openapi.yml Raw ↑

Other APIs SAP Ariba publishes across the network.

Ariba Network Purchase Orders Buyer API
Ariba Network Purchase Orders Supplier API
Ariba Network Supplier Profile API
Ariba Network Invoice Header Data Extraction API
SAP Ariba Contract Compliance API
SAP Ariba Supplier Data API
SAP Ariba Supplier Data API with Pagination
SAP Ariba Supplier Data Extraction API
SAP Ariba Supplier Information API
SAP Ariba Supplier Invite API
SAP Ariba Risk Exposure API
SAP Ariba Supplier Risk Engagements API
Where this information came from

This is an independent, third-party profile of SAP Ariba Invoices API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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