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SapEcc skill

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This skill helps automotive teams navigate SAP ECC processes, from MM to FI/CO, by delivering code-free guidance and quick transaction insights.

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SKILL.md

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---
name: Sapecc
description: SAP ECC expert for automotive manufacturing operations. Covers Materials Management (MM), Production Planning (PP), Sales & Distribution (SD), Quality Management (QM), Plant Maintenance (PM), and Finance/Controlling (FI/CO).  USE WHEN user says 'SAP', 'ECC', 'transaction code', 't-code', 'MRP', 'purchase order', 'production order', 'goods receipt', 'goods issue', 'material master', 'BOM', 'routing', 'work center', or needs help with SAP processes.  Integrates with AutomotiveManufacturing and SupplyChain skills.
---

# 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`

Overview

This skill is an SAP ECC expert focused on automotive manufacturing operations. It delivers practical guidance across Materials Management (MM), Production Planning (PP), Sales & Distribution (SD), Quality Management (QM), Plant Maintenance (PM), and Finance/Controlling (FI/CO). Use it to resolve process questions, transaction-code (t-code) tasks, and integration scenarios with automotive and supply chain contexts.

How this skill works

I inspect SAP process flows, common t-codes, movement and order statuses, and master-data requirements to diagnose issues and recommend corrective actions. I map real-world automotive scenarios (procure-to-pay, plan-to-produce, order-to-cash) to the correct transactions, postings, and system checks. I also flag integration touchpoints with AutomotiveManufacturing and SupplyChain practices and suggest best-practice controls for traceability and compliance.

When to use it

When you ask about SAP, ECC, or specific t-codes (e.g., ME21N, CO01, VA01).
When you need step-by-step actions for MRP, purchase orders, production orders, or goods movements.
When a GR/GI, invoice mismatch, or MRP failure needs troubleshooting.
When configuring or validating material master, BOM, routing, or work center data.
When aligning SAP processes to automotive quality standards (IATF 16949).

Best practices

Maintain complete, accurate material masters: units, lead times, planning views, and safety stock.
Keep BOMs and routings current with revisions, correct quantities, and realistic operation times.
Use appropriate lot-sizing and MRP types for part criticality and demand patterns.
Enforce 3-way match discipline (PO-GR-Invoice) and handle blocked/inspection stock promptly.
Document change control, calibration, and traceability to meet automotive audit requirements.

Example use cases

Create and release a purchase order for a part (ME51N → ME21N → MIGO → MIRO).
Investigate why a production order is not settling or shows negative stock (CO01/CO02, CO88, MIGO).
Run MRP and interpret results to convert planned orders to production orders (MD01, MD04, CO01).
Resolve a GR blocked by QM: complete inspection results and usage decision (QE51N, QA11).
Check ATP and create a delivery to meet a customer order (CO09, VA01, VL01N).

FAQ

Which t-code do I use for creating a production order?

Use CO01 to create a production order; CO02 to change and CO03 to display.

What movement type posts a goods receipt against a PO?

Movement type 101 posts a goods receipt for a purchase order (use MIGO).