Deep functional expertise across MM (Material Master, PIRs, Source Lists, Business Partner, procurement, RFQ/PR/PO, inventory management) and SD/LE (order processing, pricing procedures, CMIR, customer master, picking/packing/shipping, billing, returns, payment options). This position serves as the primary functional lead for SAP Materials Management (with strong Ariba integrations) and Sales & Distribution on SAP S/4HANA, including integration with third-party software.