Rehan Zaidi has more than 13 years of SAP experience and has been writing about SAP topics since 2001. He co-authored an ABAP programming training manual for a course taught in North America and has written a number of SAP books and articles about ABAP, workflow, HR functional and technical users, and SAP user experiences. Rehan has carried out support and implementation projects involving various areas of ABAP and workflow, and has worked in technical and functional areas of SAP ERP HCM. He holds bachelor and master’s degrees in computer science. You may reach Rehan via e-mail at firstname.lastname@example.org.