SOA Configuration for Custom objects/extension of standard

Hi All,

My requirement is to replicate MDG-F data from MDG Hub to ECC via PI.I am trying to extend SOA services with custom attributes for MDG-F as well as create SOA services for custom data model.

Can anyone help me with any document provided by SAP for the same or guide me the steps to be followed?

Also i would like to know if it is possible to do this without PI system.

Thanks and Regards,

Rakesh