Scenario
A company is still running SAP ECC for:
- Finance (FI/CO)
- Sales & Distribution (SD)
- Materials Management (MM)
They are not yet migrated to S/4HANA but want:
- Cloud analytics
- Harmonized KPIs
- AI-driven insights
- Modern data platform
🧱 How ECC Integrates with SAP BDC
Since ECC is a legacy ERP, integration is slightly different compared to S/4.
🔹 1️⃣ Data Extraction Methods
BDC can integrate with ECC using:
✅ ODP (Operational Data Provisioning)
- Uses standard ECC extractors
- Recommended modern approach
✅ SLT (SAP Landscape Transformation)
- Real-time table replication
- Good for near real-time reporting
✅ BW Bridge Approach
- Reuse existing BW extractors
- Lower redevelopment effort
👉 Direct CDS-based extraction (like S/4) is limited in ECC.
🔹 2️⃣ Data Ingestion into BDC
ECC tables such as:
- BKPF (Accounting document header)
- BSEG (Line items)
- VBAK (Sales header)
- MARA (Material master)
Are ingested into BDC’s managed data foundation.
🔹 3️⃣ Harmonization & Semantic Layer
Since ECC does not have Universal Journal like S/4:
- More transformation logic may be required
- Finance tables may need consolidation
- Custom mappings are often needed
BDC applies:
- Standardized business entities
- Harmonized KPIs
- Currency & unit conversions
🔹 4️⃣ Analytical Consumption
Data is exposed to:
- SAP Analytics Cloud
- External BI tools
- Predictive models
🏗️ Architecture Flow
SAP ECC ↓ ODP / SLT / BW Bridge ↓ Data Replication ↓ BDC Data Foundation ↓ Business Semantics & KPI Harmonization ↓ SAC / AI Consumption
⚠️ Key Differences: ECC vs S/4 Integration
| ECC | S/4HANA |
|---|---|
| No Universal Journal | Has ACDOCA |
| Extractor-based | CDS-based |
| More custom logic | More standardized |
| Higher transformation effort | Cleaner integration |
🎯 Interview-Ready Answer (Short)
SAP Business Data Cloud integrates with SAP ECC using ODP, SLT, or BW Bridge approaches to extract legacy ERP data. Since ECC lacks native CDS views and Universal Journal, additional transformation and harmonization are required before exposing data through the semantic layer for analytics.
You can also checkout ebooks for SAP BDC – Quick Revision – using the link :
Part 1 : https://topmate.io/vartika_gupta11/1954785
Part 2 : https://topmate.io/vartika_gupta11/1956232
Also can schedule a mock interview either by me or my team at topmate for SAP BDC – 35+ Minutes : https://topmate.io/vartika_gupta11/1962923
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