Dear Ms. Dimitrova,
The above link which you shared says how to create social sign-On using SAP Cloud Identity. But I am using SAP Netweaver developer studio 7.31 on SAP Netweaver AS Java 7.31.
My system details
SAP Netweaver Application Server Java 7.31 running on Windows 7 OS
SAP Netweaver Developer Studio 7.31(Eclipse)
Would you please share any helpful links in this regards.