How to get user information from SAP in an MS SharePoint Workflow?

Approve so essentially I am making a Workflow BPMS in SharePoint and I need to get a client's data like his/her specialization, chief and so on into the work process. 

The work process goes this way: If a worker wishes to arrange some stationary, he/she enters the work process by topping off a frame, which is sent to their chief (who's data originates from SAP HR module) and when affirmed goes to the general organization office. 

Since SAP HR stores the parts of the clients and their associations, I need to have this data associated with my work process. 

How might I accomplish this reconciliation?