User Exits, Base Customization, Edi, B2b Integration, Badi, SAP CRM, Material Master, Ecc, Business Roles, Orders, quotes, Action profiles, Invoices, Order to Cash processing, ECC SD Module, CRM and ECC pricing configuration, Number ranges, CRM and ECC master data, Sales processes, Shipments, End to end testing for O2C processes, CRM-ECC middleware, Vendors, Plants, Business Partners, SAP Interaction Center, Lead to Cash process, Outputs, Delivery, CRM Webui