SAP ECC Expert - Automotive Manufacturing

When to Activate This Skill

• "How do I [action] in SAP?"
• "What t-code for [function]?"
• "Create purchase order for [material]"
• "Check MRP results"
• "Production order status"
• "Goods receipt process"
• "Material master setup"
• "SAP integration issue"

---

Core Modules Overview

┌─────────────────────────────────────────────────────────────────┐
│                        SAP ECC LANDSCAPE                        │
├─────────────────────────────────────────────────────────────────┤
│                                                                 │
│   ┌─────────┐    ┌─────────┐    ┌─────────┐    ┌─────────┐    │
│   │   MM    │    │   PP    │    │   SD    │    │   QM    │    │
│   │Materials│───▶│Production│───▶│  Sales  │    │ Quality │    │
│   │ Mgmt    │    │Planning │    │  Dist   │    │  Mgmt   │    │
│   └────┬────┘    └────┬────┘    └────┬────┘    └────┬────┘    │
│        │              │              │              │          │
│        └──────────────┼──────────────┼──────────────┘          │
│                       │              │                          │
│   ┌─────────┐    ┌────▼────┐    ┌────▼────┐                    │
│   │   PM    │    │  FI/CO  │    │   WM    │                    │
│   │  Plant  │    │Finance/ │    │Warehouse│                    │
│   │  Maint  │    │Control  │    │  Mgmt   │                    │
│   └─────────┘    └─────────┘    └─────────┘                    │
│                                                                 │
└─────────────────────────────────────────────────────────────────┘

---

Materials Management (MM)

Key Processes

Process	T-Codes	Description
Purchase Requisition	ME51N, ME52N, ME53N	Create, change, display PR
Purchase Order	ME21N, ME22N, ME23N	Create, change, display PO
Goods Receipt	MIGO, MB01	Receive goods against PO
Invoice Verification	MIRO	Enter vendor invoice
Material Master	MM01, MM02, MM03	Create, change, display material
Vendor Master	XK01, XK02, XK03	Create, change, display vendor
Stock Overview	MMBE, MB52	View stock levels
MRP	MD01, MD02, MD04	Run MRP, display results

Purchase Order Process Flow

Purchase Requisition (ME51N)
         │
         ▼
    ┌─────────┐
    │ Approval │ (if required)
    └────┬────┘
         │
         ▼
Purchase Order (ME21N)
         │
         ▼
    ┌─────────┐
    │  Vendor  │ Confirmation
    └────┬────┘
         │
         ▼
Goods Receipt (MIGO)
         │
         ▼
Invoice Verification (MIRO)
         │
         ▼
Payment (FI)

Material Master Views

View	Purpose	Key Fields
Basic Data 1	General info	Description, UoM, material group
Basic Data 2	Extended info	Dimensions, weights
Purchasing	Procurement	Purchasing group, order unit
MRP 1	Planning	MRP type, reorder point
MRP 2	Lot sizing	Lot size, safety stock
MRP 3	Forecast	Strategy group
MRP 4	Scheduling	In-house time, GR processing
Accounting 1	Valuation	Price control, standard price
Accounting 2	Cost info	Profit center
Costing 1	Cost estimate	Cost elements
Costing 2	Extended	Costing data
Plant Data/Stor 1	Storage	Storage location, bin
Plant Data/Stor 2	Weights	Unit weight
Quality Mgmt	QM settings	Inspection type, certificate
Sales: General	SD info	Sales org, distribution
Sales: Plant	Delivery	Loading group, availability

Stock Types

Stock Type	Description	Movement
Unrestricted	Available for use	101, 561
Quality Inspection	Pending QC	103
Blocked	Not available	105, 344
In Transit	Between plants	351
Consignment	Vendor-owned	501

---

Production Planning (PP)

Key Processes

Process	T-Codes	Description
BOM	CS01, CS02, CS03	Create, change, display BOM
Routing	CA01, CA02, CA03	Create, change, display routing
Work Center	CR01, CR02, CR03	Create, change, display work center
Production Order	CO01, CO02, CO03	Create, change, display prod order
Order Confirmation	CO11N, CO15	Confirm operations
Goods Issue	MIGO, MB1A	Issue components to order
Goods Receipt	MIGO, MB31	Receive finished goods
Capacity Planning	CM01, CM21	Capacity evaluation

Production Order Lifecycle

Planned Order (from MRP)
         │
         ▼
Production Order Created (CO01)
    Status: CRTD (Created)
         │
         ▼
Order Released (CO02)
    Status: REL (Released)
         │
         ▼
Components Issued (MIGO - 261)
    Status: REL + GMPS (Goods Mvmt Posted)
         │
         ▼
Operations Confirmed (CO11N)
    Status: REL + CNF (Confirmed)
         │
         ▼
Goods Receipt (MIGO - 101)
    Status: DLV (Delivered)
         │
         ▼
Order Settlement (CO88)
    Status: TECO (Technically Complete)
         │
         ▼
Order Closed
    Status: CLSD (Closed)

MRP Types

MRP Type	Description	Use Case
PD	MRP	Standard planning
VB	Reorder Point	Simple replenishment
VM	Manual Reorder	Exception items
ND	No Planning	Non-stock items
VV	Forecast-based	Seasonal demand

Lot Sizing Procedures

Procedure	Description
EX	Exact lot size
FX	Fixed lot size
HB	Replenish to max
TB	Daily lot size
WB	Weekly lot size
MB	Monthly lot size

---

Sales & Distribution (SD)

Key Processes

Process	T-Codes	Description
Sales Order	VA01, VA02, VA03	Create, change, display SO
Delivery	VL01N, VL02N, VL03N	Create, change, display delivery
Goods Issue	VL02N	Post goods issue
Billing	VF01, VF02, VF03	Create, change, display invoice
Customer Master	XD01, XD02, XD03	Create, change, display customer
Pricing	VK11, VK12, VK13	Maintain condition records
Availability	CO09, MD04	Check ATP

Order-to-Cash Flow

Customer Inquiry (VA11)
         │
         ▼
Quotation (VA21)
         │
         ▼
Sales Order (VA01)
         │
         ▼
Delivery (VL01N)
         │
         ▼
Goods Issue (VL02N)
         │
         ▼
Billing (VF01)
         │
         ▼
Payment Receipt (FI)

---

Quality Management (QM)

Key Processes

Process	T-Codes	Description
Inspection Lot	QA01, QA02, QA03	Create, change, display
Results Recording	QE51N	Enter inspection results
Usage Decision	QA11, QA12	Accept/reject lot
Quality Notification	QM01, QM02	Create, change notification
Quality Certificate	QC21, QC22	Create, display certificate
Inspection Plan	QP01, QP02	Create, change plan
Master Inspection Char	QS21, QS22	Create, change MIC

Inspection Types

Type	Description	Trigger
01	Goods Receipt	PO receipt
02	Goods Receipt (Prod)	Production GR
03	In-process	During production
04	Final Inspection	Before delivery
05	Audit	Periodic audit
08/09	Recurring	Time-based
10	Source Inspection	At vendor

Usage Decision Codes

Code	Description	Stock Posting
A	Accept	Unrestricted
R	Reject	Blocked/Scrap
P	Partial	Split stock

---

Plant Maintenance (PM)

Key Processes

Process	T-Codes	Description
Equipment Master	IE01, IE02, IE03	Create, change, display
Functional Location	IL01, IL02, IL03	Create, change, display
Maintenance Order	IW31, IW32, IW33	Create, change, display
Notification	IW21, IW22, IW23	Create, change, display
Work Order Confirm	IW41, IW42	Time confirmation
Preventive Maint	IP10, IP30	Schedule, deadline monitoring
Task List	IA01, IA02	Create, change task list

Maintenance Order Types

Type	Description
PM01	Corrective Maintenance
PM02	Preventive Maintenance
PM03	Refurbishment
PM04	Calibration

---

Finance & Controlling (FI/CO)

Key T-Codes

Process	T-Codes	Description
G/L Posting	FB50, FB01	Document entry
Vendor Invoice	FB60	A/P invoice
Customer Invoice	FB70	A/R invoice
Payment	F110	Automatic payment
Cost Center	KS01, KS02	Create, change CC
Internal Order	KO01, KO02	Create, change order
Cost Analysis	KSB1, KOB1	Line item reports

Document Types

Type	Description
SA	G/L Account Document
RE	Invoice - Gross
KR	Vendor Invoice
KG	Vendor Credit Memo
DR	Customer Invoice
DG	Customer Credit Memo

---

Common Integration Scenarios

Procure-to-Pay

MM (PR → PO) → MM (GR) → QM (Inspection) → MM (Stock) → FI (Invoice → Payment)

Plan-to-Produce

SD (SO) → PP (MRP) → PP (Prod Order) → MM (GI) → PP (Confirm) → MM (GR) → CO (Settlement)

Order-to-Cash

SD (SO) → MM (ATP) → SD (Delivery) → MM (GI) → SD (Billing) → FI (A/R)

---

Troubleshooting Quick Reference

Common Issues

Issue	Check	Resolution
PO won't release	Release strategy	Check approval workflow
GR blocked	QM inspection	Complete usage decision
MRP not running	Planning file	MDAB/MD21 to reset
Invoice mismatch	3-way match	Check PO/GR quantities
Stock negative	Movement type	Correct posting/reversal
Order not settling	Status	Check TECO status

Useful Reports

Report	T-Code	Purpose
Stock Overview	MB52	Warehouse stock
Purchase Orders	ME2M	PO by material
Open Orders	COOIS	Production order status
MRP List	MD05	Planning results
Delivery Due	VL10	Deliveries to create
Open Items	FBL1N/FBL5N	A/P, A/R aging

---

Best Practices for Automotive

Master Data Quality

1. Material Master

   • Complete all required views
   • Accurate lead times
   • Correct UoM and conversion
   • Updated safety stock

2. BOM Accuracy

   • Current revision level
   • Correct quantities
   • Valid date ranges
   • Phantom assemblies where appropriate

3. Routing Accuracy

   • Realistic operation times
   • Correct work centers
   • Setup and run time split
   • Scrap factors

IATF 16949 Alignment

SAP Process	IATF Requirement
QM Inspection	Product verification
Batch Traceability	Identification and traceability
Document Control	Documented information
Calibration (PM)	Monitoring and measuring resources
Change Management	Design and development changes

---

Quick Reference Cards

Movement Types

Type	Description	Process
101	GR from purchase order	MIGO
102	Reversal of 101	MIGO
103	GR to quality inspection	MIGO
104	Reversal of 103	MIGO
105	GR to blocked stock	MIGO
201	GI for cost center	MIGO
261	GI for production order	MIGO
262	Reversal of 261	MIGO
301	Transfer posting plant to plant	MIGO
311	Transfer to another storage location	MIGO
501	GR without PO	MIGO
561	Initial entry of stock	MIGO
601	GI for delivery	VL02N

Order Status Codes

Status	Description
CRTD	Created
REL	Released
PCNF	Partially confirmed
CNF	Confirmed
PDLV	Partially delivered
DLV	Delivered
TECO	Technically complete
CLSD	Closed
DLFL	Deletion flag

---

Integration with PAI Skills

AutomotiveManufacturing

• Work instructions reference SAP transactions
• Document control aligned with SAP DMS
• Quality procedures link to QM inspection

SupplyChain

• Purchasing processes in MM
• Supplier scorecards from QM data
• Inventory management strategies

A3CriticalThinking

• Root cause analysis for SAP process issues
• Priority hierarchy for system changes

---

Extended Context

For detailed transaction guides and configuration: read ~/.claude/skills/SapEcc/CLAUDE.md

For transaction code reference: read ~/.claude/skills/SapEcc/reference/tcodes.md