Phase 8 — Valuation & Account Determination
🎯 In plain words
❓ Why it matters
Account determination is the bridge between MM and FI. Get OBYC wrong and every posting is wrong — stock values are off, the GR/IR account won't clear, the balance sheet is misstated. This is exactly what Finance relies on MM to configure correctly, and it's the topic interviewers use to separate real consultants from button-pushers.
🧠 Key concepts you must know
1. Price control: V vs S
| Control | Meaning |
|---|---|
| V — Moving Average | Value recalculates with every receipt; the price floats with what you actually paid. Typical for raw materials & trading goods. |
| S — Standard | A fixed price; any difference goes to a price difference account. Typical for finished/semi-finished goods. |
With S, the gap between actual and standard is the variance that lands in PRD.
2. Valuation class & valuation grouping
- Valuation class — a key on the material's accounting view that groups materials of the same kind (e.g. raw materials, finished goods) so they post to the same inventory account. It's the link between a material and its G/L account.
- Valuation grouping code — lets several plants share one set of account assignments (or keep them separate). Activated in OMWM, assigned in OMWD.
3. OBYC — the account determination engine
All automatic postings are configured in OBYC via transaction keys. The ones to know cold:
| Key | Posts |
|---|---|
| BSX | Inventory (stock) account |
| WRX | GR/IR clearing account |
| GBB | Offsetting entry for goods movements — split by modifier: VBR (internal consumption), VAX (cost of goods sold)… |
| PRD | Price differences (standard-price variances) |
| KBS | Account assigned in the document (cost center / order) |
| FRE | Freight / delivery cost clearing |
| UMB | Gain/loss from revaluation |
4. Split valuation
Sometimes the same material needs different values for different sources — e.g. in-house vs externally procured, or different qualities. Split valuation (OMWC) lets one material number carry several valuation types, each with its own price.
5. Material Ledger (concept)
The Material Ledger enables actual costing — instead of living with standard-price variances, it rolls them back into the true material cost at period-end, and supports multiple currencies. In S/4HANA it's switched on by default.
🛠️ Do it now — practise alongside
Don't just read — go trace and configure these in your IDES. Theory sticks once you've done it:
Accounting 101 OBYC (Setup 15) Split Valuation (17)Then trace a GR and a MIRO posting account-by-account: see BSX debit / WRX credit on the goods receipt, then WRX clear and any PRD on the invoice. Knowing which key fired and why is the whole skill.
🔗 Connects to
- Phase 6 — Inventory Management: every movement type uses OBYC to find its G/L accounts.
- Phase 7 — Invoice Verification: the invoice clears WRX (GR/IR) and posts price differences to PRD.
- Accounting 101: the debit/credit basics behind every posting here.
- Phase 2 — Foundations: the Material Ledger and actual costing build on these valuation ideas.
🎓 Cert focus & quick recall
C_TS452 area ⑥. Expect questions on price control V vs S, what each OBYC key posts, the role of the valuation class, and when split valuation applies.
Price control V vs S — what's the difference?
V (moving average) recalculates the material value with every receipt, so the price floats. S (standard) keeps a fixed price and books any difference to a price-difference (PRD) account.
What do BSX, WRX and GBB-VBR post?
BSX = inventory/stock account; WRX = GR/IR clearing account; GBB-VBR = the offsetting consumption entry for an internal goods issue (e.g. to a cost center).
What is a valuation class for?
It groups similar materials so they post to the same G/L accounts — it's the link in the material master that lets OBYC find the correct inventory account.
When do you use split valuation?
When one material must be valued differently by source or quality — e.g. in-house vs externally procured, or batches of different grade — each valuation type carrying its own price.
✅ You're ready to move on when…
- You can explain price control V vs S and where the variance goes.
- You can say what BSX, WRX, GBB and PRD each post without looking.
- You've traced a GR + MIRO posting account-by-account in OBYC terms.