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Every online business has a glamorous side: conversion charts climbing upward, ad campaigns pulling in traffic, dashboards lighting up like a holiday parade. But behind that glittery front door is a decidedly unglamorous problem quietly siphoning money out the back. The checkout page—the moment of truth, the final handshake between customer and revenue—is also the point where everything is most likely to fall apart.

And fall apart it does. We surveyed 500 executives from the USA for our 2025 State of Checkout report and found that one in four companies loses more than $1 million every year to checkout issues alone. 

Think of it as a slow, silent leak in a very expensive bucket. Nobody sees the water spilling out, but everyone wonders why it never fills all the way up.

This post lifts the curtain on that leak. Not with doom and gloom, but with clarity. Because once you understand the real causes of payment failure, you can stop losing money for reasons that have nothing to do with your product and everything to do with the machinery underneath it.

What are failed transactions? 

A failed checkout is any transaction that does not finish successfully. But there are many reasons behind the failures. 

This goes well beyond fraud declines. We’re talking about everything from a customer giving up at the last screen, to the customer trying to use a payment method you don’t support, to a hiccup in the underlying payment infrastructure.

This failure point has a very real price tag. Checkout isn’t just a final step, it’s the moment where customer intent becomes revenue, or is lost forever. 

The 2025 State of Checkout survey makes that painfully clear: 25% of businesses lose over $1 million each year at the point of payment. That's not minor friction. That’s a head-on collision with your growth goals.

Some sectors feel it even more. 

Manufacturing and financial services executives reported the highest concentration of million-dollar losses, which makes sense when you consider their high average order values and complexity. 

But wherever you sit, if your business depends on digital checkout, these failures aren’t theoretical. Your balance sheet already knows them intimately.

What is payment optimization?

The payments world is famous for its acronyms and its uncanny ability to make simple ideas sound like an encryption challenge. So let’s clear the fog and define a few of the terms we’ll use as we guide you through all of this. 

Payment optimization

This is the practice of tuning your payment system so that more transactions succeed. Think smarter routing decisions, retry logic that gives a card a second chance, and workflows that quietly rescue transactions that would otherwise drop dead. 

Optimization is the engine-tuning part of payments. Think of it as the difference between “It technically runs, I guess” and “ Hoooo-ee! It runs beautifully!”

Payment orchestration

If optimization is tuning the engine, orchestration via an open payments platform is the entire garage. 

It’s the platform that lets you manage multiple gateways, fraud tools, local payment methods, and all the other moving parts of your payment ecosystem. 

Instead of stitching systems together with duct tape and crossed fingers, orchestration brings order to chaos so you can build routing rules, failover paths, and payment experiences that actually scale.

Payment compliance

Compliance is the rulebook you have to follow to keep sensitive data safe and regulators happy. 

PCI DSS requirements sit at the center, but networks and gateways each have rules of their own. Compliance doesn’t score you extra points, it’s simply the cost of being allowed to play at all. 

Ignore it, and the penalties make a million-dollar checkout leak look quaint.

What are the root causes of checkout failure?

If you ask most executives where they lose money in payments, they’ll point to fraud. It’s dramatic, it’s visible, and it feels like the obvious villain. But the data tells a far more mundane story: the biggest losses come not from cybercriminal masterminds but from everyday friction.

In our 2025 State of Checkout survey of 500 U.S. executives, the top culprits were crystal clear:

Customer abandonment (29%)

This is the Mike Tyson of lost revenue. Customers aren’t fleeing because they’re indecisive; they’re fleeing because something about the checkout feels confusing, slow, sketchy, or unnecessarily complicated. 

Think of checkout friction as the digital equivalent of a checkout line that’s too long. Or, to continue the analogy above with The Champ, an opponent that’s just too danged strong. 

Payment method not supported (28%)

Right behind abandonment is the customer who knows exactly how they want to pay and discovers they can’t use their preferred payment method. Global shoppers expect local and alternative payment methods, and failing to offer them is like opening a store and refusing the currency people actually carry.

Network or service downtime (17%)

Gateways fail. Networks drop. Providers have outages. When your entire checkout depends on a single system staying upright, every wobble becomes a lost sale.

Outdated card credentials (12%)

Cards expire, banks reissue them, numbers change. When your system doesn’t keep customer credentials fresh through vaulting and tokenization strategies, you’re essentially tripping over stale data.

Once you see the causes spelled out this clearly, it becomes obvious: the biggest leaks in your checkout aren’t the exotic threats you’d hoped they would be. They’re just everyday operational issues that can be solved. 

Why you’ll spend time optimizing your checkout

If a quarter of businesses are watching $1 million evaporate from checkout every year, the motivation to fix it should be obvious. But let’s talk about the improvements you actually gain once you start optimizing.

You recoup revenue immediately

Most optimization improvements, like multi-route fallback, retry logic, and cleaner workflows, directly attack the top causes of failure. When fewer customers abandon and fewer transactions fail for bad routing choices, the revenue boost shows up fast.

Your customer journey improves dramatically

Customers don’t dream of fast, invisible payment flows, but they absolutely notice when payments feel slow, limited, or suspicious. Optimization tightens the entire experience, ensuring that the happy path stays happy.

Operational costs go down

Automation removes manual routing work and cuts down engineering maintenance. We're seeing a push toward what executives call “Agentic Checkout,” where AI-backed automation handles the heavy lifting of routing, failover, and performance tuning.

Your payment stack becomes future-proof

A multi-gateway, multi-region, orchestrated payment system isn’t just faster: it’s resilient. 

Downtime from a single provider becomes a mild inconvenience instead of a headline-making meltdown. Our survey shows that 40% of companies already use multi-country flows, and 33% have backup gateways in place. In an increasingly unpredictable world, redundancy isn’t a luxury: it’s survival engineering.

Solving the mystery of the $1M checkout loss

Everything starts with a mystery. In this case, the mystery is why customers who clearly intend to buy suddenly vanish somewhere between “Add to Cart” and “Order Confirmed.” 

You’re probably imagining the worst. Was the product page unclear? Was the price too high? Did the customer get distracted by a text message, a cat video, or a sudden existential crisis? Sometimes those things happen, but more often the villain is far less dramatic: the payment flow quietly falls apart.

To figure out what is really going wrong, you need primary research. 

Talk to customers, interview support teams, and sift through the smoldering wreckage of abandoned checkouts. You’ll find that two culprits pop up repeatedly. Customers leave because the process is confusing or inconvenient, and transactions fail because the payment method they wanted wasn’t supported. No melodrama, just friction.

The call is coming from inside the house

Once you’ve gathered that feedback, the next stop is inside your own walls. 

Bring in your engineering and product teams and ask them what it takes to keep your payment stack functioning on an average Tuesday. This is where you discover the quiet, grinding reality of the engineering time tax. 

A remarkable portion of a company’s engineering resources end up maintaining payments. Not innovating. Not solving customer problems. Just keeping the pipes from leaking. In surveys, it’s surprisingly common to hear that a quarter of an engineering org is tied up in payments upkeep alone. 

Nobody says this proudly.

The trail of breadcrumbs hidden in your data

Now that you understand how customers behave and how your internal machinery creaks, turn to your data. It’s always trying to tell you things, though usually in a language only decline codes understand.

Look at regional performance patterns and you might find that what works flawlessly in North America collapses the moment someone in Singapore tries to pay from a mobile device. Study the reasons for failed transactions and you’ll trip over problems like outdated card credentials or a gateway that went down at the worst possible moment. 

At that point it becomes clear why tools like a reliable vault, payment method lifecycle management, and a more resilient architecture start to matter. Your system is already leaving breadcrumbs. Now it’s up to you to follow them.

Picking the right tools to solve your issues

Suppose you introduce intelligent payment routing. Suddenly you are not sending every transaction through a single gateway out of habit or inertia; you are choosing the best-performing route for each attempt, almost like air traffic control but with fewer radios and no risk of mid-air collision. That change alone often lifts revenue because fewer transactions fail for preventable reasons.

Once you’ve gathered the evidence, the real fun begins. You can finally stop guessing and start structuring the problem with useful solutions grounded in the reality of the data you've uncovered. You stop thinking of payment optimization as an industry buzzword and really start plotting your path forward.

At this point, many turn towards a unified vault.Instead of storing payment data in half a dozen places, replicating it, updating it, and quietly resenting it, you centralize it. 

Life gets easier. Security improves. Your PCI burden shrinks to something less monstrous. 

And when you add network tokens into the picture, you reduce the number of failures caused by stale or reissued cards. Customers don’t know this is happening, but they feel it every time a subscription renews smoothly instead of requiring them to dig up a new card.

Navigating the surprisingly thorny world of local payment methods

Then there is the surprisingly thorny topic of supporting local payment methods. 

It turns out the world is large, people pay in thousands of different ways, and most merchants support only a tiny fraction of them. 

When a global business realizes that only about a third of its peers support region-specific payment methods, it becomes obvious why so many checkouts die quietly in foreign markets. 

Adding those methods is not a luxury; it is a basic requirement for entering new regions without tripping over cultural and financial norms.

Build a payments system for the future

Now we’re starting to see a pattern. Modern payment systems aren’t only judged by how securely they store data or how quickly they move money. They are judged by how gracefully they adapt to new regions, new preferences, new technologies, and new expectations. 

They have to be secure, yes, but they also have to be flexible enough to evolve without devouring engineering time or frustrating customers.

Optimizing your way back from checkout friction

At this point, you’ve probably realized that payment optimization isn’t some optional extra you sprinkle on top of a checkout flow. It’s the infrastructure version of eating your vegetables. 

If you want more customers to finish what they started, you need the plumbing behind the scenes to be fast, reliable, adaptable, and just unobtrusive enough that nobody ever thinks about it again.

The truth is that you’re no longer competing on product alone. You’re competing on whether you can process a transaction without tripping over your own integrations or drowning your engineering team in maintenance work. 

This is where an open payments platform earns its keep. It brings order to the chaos, routes transactions intelligently, and smooths out the little frictions that push customers away. Solve the silent killers of conversion—abandonment, unsupported payment methods, stale payment credentials—and suddenly you stop wondering where your revenue went.

So take everything you now know about payment optimization and put it to work. The gains aren’t theoretical. They show up as real money, the kind your CFO stops to admire.

If you want the deeper dive, with all the data and none of the mystery, the full white paper, The State of Checkout 2025, walks through the landscape in detail and shows how orchestration reshapes the entire commerce operation. It’s a worthwhile read if you’re ready to plug the leaks and let your revenue flow the way it should.