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February 27, 2026 Nguyễn Mạnh Tường

Currency Risk Management: Don't Let Exchange Rates Erode Your Bottom Line

20 years of ERP implementation have taught me one thing: Currency risk isn't in the numbers, it's in the system latency.

Currency Risk Management: Don't Let Exchange Rates Erode Your Bottom Line

Day 21: When Exchange Rates Are More Than Just Numbers

In over 20 years of deploying ERP systems across various industries, I’ve seen countless import-export companies thrive in sales but suffer losses on their financial statements. The culprit? Foreign Exchange (FX) volatility.

Many CEOs still leave FX management to the accounting department at month-end. This is a fatal mistake. In today’s geopolitical climate, FX risk management must be an integral part of your System Strategy, not just an adjusting entry.

The Latency Trap

In the Vietnamese market, complying with Circular 200/2014/TT-BTC requires strictness in recording actual transaction rates and period-end revaluations. The most common mistake is relying on manual processes or fragmented systems. When data moves from SCM to Finance with a 3-day delay, the figures you see are already “historical artifacts.”

“In international finance, system responsiveness is more critical than expert forecasting. A robust ERP doesn’t just record; it alerts.”

Comparison: Manual Management vs. Integrated ERP

CriteriaManual Management (Excel/Legacy)Standardized ERP (Best Practices)
Exchange RatesManual entry, error-prone, high latency.Auto-sync via Bank/API (e.g., Vietcombank).
RevaluationMonthly or Quarterly.Real-time revaluation.
HedgingBased on intuition and outdated reports.Integrated derivatives, projected risk calculation.
VAS/IFRS ReportingManual conversion, high discrepancy risk.Parallel accounting (Multi-book) capabilities.

Hard-earned Lesson: Don’t Trust “Average Rates”

I once handled a case for a major textile group. They used weighted average rates for inventory accounting. When the USD fluctuated by 3% in a single week, their product costing was completely skewed, leading to disastrous bidding decisions.

My Solution: Force the system to segregate Realized Gain/Loss and Unrealized Gain/Loss at the exact moment of the inventory transaction. Only when you see the risk “hanging” over your head do you know exactly how many Forward contracts to purchase.

Leadership Advice

  1. System Optimization: Ensure your financial system can handle Multi-currency configurations down to the transaction level.
  2. Data Automation: Connect APIs with banks for daily rates. Never let an accountant manually input the numbers they prefer.
  3. Stress-test Scenarios: Demand your IT/System team run simulations: “If the VND depreciates by 5%, what happens to our cash flow?”

FX management isn’t about gambling with the market. It’s about mastering data and technology to protect your business’s hard-earned profits.

Nguyen Manh Tuong