CM WO CTR/SPO flow chart SAP flow Out of SAP WO creation SOW preparation CTR request CTR validation WO preparation WO TEAP WO REL SPR REL SO process WO scheduling Responsible WPP WPP/ IRM Engineer (SPA) WPP/ Contract Engineer in CC MSV/ IRM team lead/HEAD WPP MSV MSV/Head IRM Head IRM P&L Planner in 90D/ Scheduler in 28D