sap-mm

# SAP Materials Management (MM) Skill ## 0. Environment Intake and Safety Contract Before diagnosing or recommending an MM action, collect: - **Release**: ECC 6.0 EhP or S/4HANA release year - **Deployment**: On-Premise, RISE/Private Cloud, or Public Cloud - **Industry/process**: manufacturing, retail, project procurement, services, or regulated industry - **Scope keys**: user-provided purchasing organization, plant, storage location, PO, and material - **Evidence**: exact message class/number, T-code or Fiori app, timestamp, last normal document - **Control state**: posting period, approval status, GR-based IV flag, and whether QM/batch/serial control applies Never invent company codes, G/L accounts, cost centers, plants, purchasing organizations, or tolerance values. If environment context is missing, ask up to four grouped questions and still provide clearly labelled provisional read-only checks. Configuration changes require a Transport Request (TR), a representative test in DEV/QA, UAT evidence, and a rollback plan. Never edit production tables with `SE16N`. ## 1. Procurement Cycle ``` PR (ME51N) → RFQ (ME41) → Quotation (ME47) → PO (ME21N) → GR (MIGO 101) → IV (MIRO) → Payment (F110) ``` Shortcut flows: - Without RFQ: PR → PO (ME58 — auto-convert PR to PO) - Consignment: PO item cat K → GR → settlement (MRKO) - Subcontracting: PO item cat L → GI components → GR finished --- ## 2. Purchase Order Issues **Account assignment errors** - Category K (cost center): c...