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May 05, 2026 Nguyễn Mạnh Tường

ERP Post-Go-live: The Beginning or a Money Pit?

Many businesses mistake Go-live for the finish line. In reality, that's when the real battle for system integrity begins. Insights from 20 years in the trenches.

ERP Post-Go-live: The Beginning or a Money Pit?

I am Nguyen Manh Tuong.

After 20 years of implementing ERP, SCM, and HRM systems across various industries, I’ve seen a recurring tragedy: 80% of enterprises fail not before Go-live, but 6 months after.

CEOs often celebrate the launch and then hand the keys to the IT department, thinking the job is done. This is a fatal mistake. An ERP system without proper maintenance and upgrades is like a vacant real estate property—it depreciates rapidly and becomes a liability rather than a high-yield asset.

1. The “Mission Accomplished” Illusion

In the Vietnamese market, especially for firms transitioning to VAS (Vietnam Accounting Standards), the biggest hurdle isn’t the tech—it’s the habit. Post-Go-live, under operational pressure, staff often retreat to Excel for “speed.”

“ERP is not software you buy and install. It is a management discipline you practice every single day.”

If you don’t enforce data integrity immediately after Go-live, your system will quickly turn into a data graveyard.

2. Maintenance vs. Optimization: Know the Difference

Don’t confuse bug fixing with Optimization. Look at how a strategic leader views these two functions:

FeatureSystem MaintenanceSystem Optimization/Upgrade
ObjectiveKeep the system alive.Make the business run faster.
FrequencyDaily / Hourly.Quarterly or per business cycle.
ExecutionInternal IT / Vendor Support.Consultants & Key Users.
OutcomeStability.Competitive Advantage.
Financial LogicOperating Expense (OPEX).Strategic Investment (CAPEX).

3. Inside Info: The Over-Customization Trap

I once consulted for a large distribution firm that demanded heavy Customization of their DMS and ERP to satisfy old employee habits. The result? When the software vendor released a new version with advanced features, they couldn’t upgrade due to source code conflicts.

My advice: Keep the Core clean. If you want to upgrade the system post-Go-live, upgrade your people’s mindset first.

4. Risk Management and System Finance

Applying my current focus on Personal Finance and Real Estate, I view an ERP as an investment portfolio:

  • Risk Management: Do you have a contingency plan when the system freezes on the last day of the month?
  • ROI: One year after Go-live, by what percentage has your inventory cost decreased? How much has your capital turnover improved?

If you cannot answer with hard data, your system is on life support.

Final Thought: Don’t let your ERP become an expensive monument. Make it a living entity, constantly nourished with clean data and sharpened by decisive management.

Day 88. The journey continues.

Nguyen Manh Tuong.