K2 Connect supports not only K2 SSO but also SAP SSO.  In order to use SAP SSO you must first obtain a SAP logon token from their portal.  When you  enable K2 Connect for SAP SSO a new parameter is added to Connect ServiceObjects to input this token.  This project is an example of a custom service broker (with source code) that can be used to obtain the SAP login token.  This example may require modification for use in your environment.

This example was uploaded on behalf of the original authors who graciously agreed to share it with the K2 community.