Every fraud prevention implementation is unique.

Different merchants have different payment flows, risk appetites, operational processes, and technical environments. Yet after onboarding enterprise merchants, we’ve noticed that successful projects always have a few things in common.

Our recent onboarding with Last Minute reinforced these lessons once again.

1. Success Doesn’t Begin at Go-Live

Many companies think onboarding ends when production begins.

In reality, production is when onboarding starts.

The goal isn’t simply to deploy software—it’s to build confidence that every transaction flowing through production is being handled correctly.

For Last Minute, this meant investing time in QA, validating edge cases, and maintaining close communication during the stabilization period. As a result, production launched smoothly, without significant incidents or performance degradation.

Lesson: A smooth go-live is rarely luck. It’s the result of preparation.

2. Fast Feedback Loops Beat Perfect Planning

No implementation goes exactly according to plan.

The difference between successful and difficult onboardings isn’t whether issues appear—it’s how quickly they’re resolved.

Throughout the project, both technical teams maintained rapid communication, reviewed integration feedback quickly, and continuously monitored production together.

Instead of lengthy approval chains, problems became conversations.

Lesson: Collaboration reduces onboarding time more than documentation ever can.

3. Stability Is a KPI

Many onboarding projects celebrate features delivered.

We celebrate systems that simply keep working.

During the first production month, Last Minute experienced healthy API performance, stable infrastructure, and no significant production incidents.

That allowed everyone to focus on optimization instead of troubleshooting.

Lesson: The best production environment is the one nobody has to think about.

4. Fraud Prevention Isn’t Static

One mistake companies often make is assuming fraud models are “finished” after deployment.

They’re not.

Fraud changes. Customer behavior changes. Attack patterns change.

That’s why our models immediately begin learning from live transaction data after launch and continue being tuned over time.

The first month isn’t about reaching perfection. It’s about building momentum.

Lesson: Fraud prevention is a living system—not a one-time implementation.

5. The Best Fraud Prevention Improves Revenue

Blocking fraud is only half the job.

Approving legitimate customers matters just as much.

During the first month of production, Last Minute achieved:

• $11M in guaranteed transaction volume
• 8,662 approved orders
• An approval rate improvement from 91.3% to 99.35%

Those numbers demonstrate an important principle:

A fraud platform should protect merchants while helping good customers complete their purchases.

6. Operational Readiness Matters as Much as Technical Readiness

Fraud prevention doesn’t stop after authorization.

Chargebacks, disputes, evidence collection, and liability management all require clear operational processes.

During onboarding, we worked with Last Minute to establish a structured dispute management flow, define evidence collection procedures, and clarify responsibilities between both teams.

That preparation means future disputes can be handled consistently rather than reactively.

Lesson: Enterprise onboarding includes people and processes—not just APIs.

7. Continuous Optimization Is Where the Value Comes From

Perhaps the biggest lesson is this:

The implementation phase has an end date. Optimization doesn’t.

Once production is stable, attention shifts toward:

• refining risk models,
• improving approval rates,
• monitoring account health,
• strengthening dispute performance,
• and identifying new opportunities for growth.

This is where long-term partnerships are built.

The Real Measure of Success

Looking back, the most important outcome of the Last Minute onboarding wasn’t a particular metric or milestone.

It was that both teams finished the first month with the same conclusion:

The platform is stable. The collaboration is strong. The operational foundation is in place. And now the focus can shift from implementation to continuous improvement.

At FUGU, that’s what a successful onboarding looks like—not simply getting a customer live, but giving them a framework that continues to improve long after launch.