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❓ Can a Revenue Cost Element Derive a Profit Center from OKB9?

✅ Short Answer:

No, OKB9 does not derive Profit Center for Revenue Cost Elements.

🧠 Why?

The OKB9 (Automatic Account Assignment) transaction is designed to default Cost Centers (and optionally Profit Centers) for expense postings—i.e., Primary Cost Elements, not Revenue.

📌 Key Clarifications:

TopicRevenue Cost ElementCategoryTypically Category 11 (Revenue)OKB9 applicability❌ Not used for revenue elementsSystem behaviorProfit Center is derived via:

• Sales Order
• Customer Master
• Material Master
• Substitution Rule
• Profit Center Derivation Logic (Exit / BAdI)

✅ Correct Ways to Derive Profit Center for Revenue Postings

🔹 1. From Sales Order Item

• Profit center can be derived from:
  • Material master (if strategy is based on material)
  • Sales order account assignment
  • WBS or internal order if used

🔹 2. Customer Master (If SD is configured that way)

🔹 3. Custom Substitution Logic

• Use Substitution Rule (GGB1) in FI or CO
• BAdIs like BADI_FAGL_DERIVE_PROFIT_CENTER in New GL

🧠 Pro Tip:

If your revenue postings are missing profit center and you're relying on OKB9, it won't work.

✔️ Instead, check your derivation strategy in:

• KEPC (if CO-PA is active)
• Profit Center Derivation Rules
• Substitution routines

✅ Conclusion:

Revenue cost elements cannot derive profit center via OKB9.
Use sales order, material master, or substitution logic to ensure profit center is derived correctly for revenue postings.