SAP MM (Materials Management)

 Mastering SAP MM:

SAP MM (Materials Management) is the backbone of procurement and inventory management in SAP ERP.

🔹 1️⃣ Organizational Structure in SAP MM
🏢 Company Code – Legal entity (BUKRS)
🏭 Plant – Manufacturing or distribution site (WERKS)
📦 Storage Location – Warehouse or storage unit (LGORT)
🛒 Purchasing Organization – Procurement entity (EKORG)
👥 Purchasing Group – Buyer group (EKGRP)

2️⃣ Master Data in SAP MM
📄 Material Master – MM01, MM02, MM03 📋 (MARA, MARC, MARD)
🏪 Vendor Master – XK01, XK02, XK03 👨💼 (LFA1, LFB1, LFM1)
📊 Purchasing Info Record – ME11, ME12, ME13 📈 (EINA, EINE)
📜 Source List – ME01, ME02, ME03 📃 (EORD)
⚖️ Quota Arrangement – MEQ1, MEQ2, MEQ3 (EKQT)

3️⃣ Procurement Process
📝 Purchase Requisition (PR) – ME51N, ME52N, ME53N (EBAN)
📩 Request for Quotation (RFQ) – ME41, ME42, ME43 (EKKO, EKPO)
🛍️ Purchase Order (PO) – ME21N, ME22N, ME23N (EKKO, EKPO)
📦 Goods Receipt (GR) – MIGO, MB1C, MB01 (MKPF, MSEG)
📑 Invoice Verification – MIRO, MRRL (RBKP, RSEG)

4️⃣ Inventory Management
✅ Goods Receipt (GR) – MIGO, MB01 ✅ (MKPF, MSEG)
❌ Goods Issue (GI) – MB1A, MB1B ❌ (MSEG, MKPF)
🔄 Stock Transfer & Transfer Posting – MIGO, MB1B 🔄 (MARD, MKPF)

🔹 5️⃣ Invoice Verification
📥 Invoice Receipt – MIRO, MRRL (RBKP, RSEG)
🔄 Subsequent Debit/Credit – MRHR, MIR7
✅ Automatic Invoice Settlement – MRRL
🔓 Blocking & Releasing Invoices – MRBR

🔹 6️⃣ Valuation & Account Determination
💰 Material Valuation – OMWB, MR21, MR22 (MBEW)
📊 Price Control (S, V)
🏦 Account Determination – OBYC, BSX, WRX, GBB

🔹 7️⃣ Physical Inventory
📌 Create Inventory Document – MI01, MI02, MI03
📊 Enter Count – MI04
🔄 Post Differences – MI07

🔹 8️⃣ Special Procurement Types
📦 Consignment – ME21N, MRKO
🛠️ Subcontracting – ME21N, MIGO, J1IF01
🚚 Stock Transport Orders – ME27, ME21N
🤝 Third-Party Processing – PR -> PO -> Invoice

🔹 9️⃣ Release Strategy
🔑 Define Release Procedure – OMGQ
✅ Release Purchase Requisition – ME54N, ME55

🛒 Release Purchase Order – ME28
🔹 🔟 Pricing Procedure in MM
⚙️ Define Pricing Schema – M/08, M/06, M/07
📊 Create Condition Records – MEK1, MEK2, MEK3
🔹 1️⃣1️⃣ Integration with Other Modules
💰 SAP FI – Account Determination (OBYC)
🚚 SAP SD – Stock Transfers (ME27)
🏭 SAP PP – Material Requirement Planning (MD04)
🔍 SAP QM – Quality Check During GR (QA32)
🔹 1️⃣2️⃣ Reporting & Analysis
📑 Standard Reports – MB52, MB51, ME2N, ME2L
📊 Inventory Analysis – MC.1, MC.9
📊 Purchasing Reports – ME2M, ME2L, ME2K