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
-
Material Master
- Complete all required views
- Accurate lead times
- Correct UoM and conversion
- Updated safety stock
-
BOM Accuracy
- Current revision level
- Correct quantities
- Valid date ranges
- Phantom assemblies where appropriate
-
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