ARIBA SAP NW SSO INTEGRATION

Hi expertes!

¿Has anybody configured SAP Ariba for SAML authentication with SAP NW SSO as IDP?

When we activate SAML in ARIBA and try to access, we are being redirected to SAP NW SSO but we got the error "The received SAML2 message could not be parsed"

I didn´t find any specific documentation about ARIBA with SAP SSO integration.

Thanks a lot!