Ariba API (json / cXML)

Hi,

I would like to get information from an Ariba System from outside (e.g. retrieving purchase orders).

Up to my knowledge, there are several possibilties:

• using json (https://api.sap.com/api/purchase_orders_supplier/overview) --> REST API
• using cXML (https://help.sap.com/viewer/43cc25c2fa9d4789b058784e816a2af8/cloud/de-DE/dd8b0107f0181014b682fba700a4d7fa.html)

What are the prerequisites and scenarios for each possibility?
Is there another way?

BR

Simon