SAP IDM Connection to Ariba

HI Experts,

We are on IDM 7.2 Service Pack 9 Patch Level 6

We need to connect our IDM system to Ariba. I believe that we don't have a connector available for SAP to Ariba.

What is the best way to do this? If we have to use webservices is there any standard documentation that we can refer to?

Regards,

Aman