Hi Stephane,
Apologies. I could not find much information online on the topic in question.
Address Area - SAPconnect (BC-SRV-COM) - SAP Library
The SAPconnect routing concept is based exclusively on the address areas. It is not possible to use other data, like for example the formats supported by the nodes, as the basis for the routing
Hope you fine more information.
Kind Regards,
J