SAP Consultants implement, customise, and support SAP ERP systems across modules such as FI (Financial Accounting), CO (Controlling), SD (Sales & Distribution), MM (Materials Management), PP (Production Planning), and HCM (Human Capital Management), with a fast-growing specialisation in S/4HANA Greenfield and Brownfield migrations. In India, the role is concentrated in the SAP practices of TCS, Infosys, Wipro, HCL, Tech Mahindra, Capgemini, IBM Consulting, Accenture, and Deloitte — all of whom run large client accounts in BFSI, manufacturing, energy, and retail on multi-year S/4HANA transformation engagements. Functional consultants work between business users and ABAP developers: they translate business processes into SAP configuration via the IMG (Implementation Guide), write functional specifications for enhancements, coordinate UAT, and own post-go-live hypercare. Senior consultants and architects layer in S/4HANA-specific capabilities — Universal Journal (ACDOCA), embedded analytics via SAP BW4/HANA, SAP Fiori UX, and Business Technology Platform (BTP) integration with third-party systems. The demand for India-based SAP talent is structurally driven by the 2027 ECC end-of-mainstream-maintenance deadline: virtually every global SAP customer running ECC 6.0 must plan an S/4HANA migration, making experienced FI/CO and SD/MM functional consultants with S/4HANA project exposure among the most sought-after profiles in Indian IT services in 2025-2027.