Integration
FI integration is what makes SAP powerful: financial postings happen automatically from logistics events (MM, SD, PP) and from CO, so finance always reflects operations without manual re-entry. Understanding these integration points is essential.
The whole value of ERP is that operations and finance stay in sync automatically.
- These automatic postings rely on account determination configuration, rules that decide which G/L accounts each logistics event…
- MM → FI: goods receipt posts inventory/GR-IR; invoice verification posts the AP liability.
- SD → FI: goods issue posts cost of goods sold; billing posts revenue/AR.
- Watch out: Not understanding how your module posts to FI.
The main integration points
- MM → FI: goods receipt posts inventory/GR-IR; invoice verification posts the AP liability.
- SD → FI: goods issue posts cost of goods sold; billing posts revenue/AR.
- PP → CO/FI: production consumes/produces value; costs settle.
- FI ↔ CO: in S/4HANA, unified in the universal journal.
Account determination drives it
These automatic postings rely on account determination configuration, rules that decide which G/L accounts each logistics event uses. When integration "breaks" (a goods receipt fails to post), the cause is almost always account determination or missing configuration.
Why it matters
The whole value of ERP is that operations and finance stay in sync automatically. A functional consultant, in any module, must understand how their process posts to finance, because that integration is where much of the real complexity and troubleshooting lives.
Common pitfalls
- Not understanding how your module posts to FI.
- Account-determination gaps breaking postings.
- Treating FI as separate from logistics.