SOAP adapter for Ariba cloud solution ( APC )

Hi All,

I know that Ariba comes in 3 solutions - Ariba on-premise , Ariba on-demand/cloud ( APC ) , Ariba network ( ASN )

I also know that AribaNetworkAdapter needs to be used for integration with Ariba network ( ASN )

How to connect SAP to the Ariba Network using Netweaver Process Integration/Orchestration

However can we use a SOAP adapter for integration with Ariba cloud solution ( APC ) or is it mandatory to use AribaNetworkAdapter for APC also ?

Thanks