Start here: http://www.erpprep.com/sap-nw-certification/sap-process-integration-pi The certification "SAP Certfied Development Associate - Process Integration with SAP NetWeaver (PI 7.31)" verifies the basic knowledge in the area of Process Integration with SAP NetWeaver (PI 7.31) Here is the list topics that may be covered within this certification- Mapping, Business Process Management, Overview and basic concepts and Runtime. To ensure success, SAP recommends following readings TBIT44, TBIT40, BIT402 and BIT403