Case Study

How Carrefour reduced revenue loss by $383k and achieved a 49.5x ROI with Noibu

Industry

Retail & Grocery

Job title

Head of Digital & Ecommerce

Noibu’s impact

In their first year partnering with Noibu, Carrefour achieved a 49.5x annualized ROI and recovered $383K in revenue opportunities.

$383K+ in annual revenue recovered through ecommerce issue resolution
49.5x ROI on platform investment
Significant reduction in development time and faster error resolution
Enhanced visibility into hidden ecommerce performance issues

About Carrefour Belgium

Carrefour is one of the world's largest retail and grocery brands, with a global presence and a strong emphasis on digital transformation across its local markets. Carrefour operates a robust ecommerce arm powered by Salesforce Commerce Cloud (SFCC)—serving a global base of online shoppers who expect speed, reliability, and seamless experiences at every step.

To ensure its digital storefront keeps up with modern ecommerce standards and customer expectations, Carrefour Belgium partnered with Noibu in 2021 to proactively detect and resolve revenue-impacting errors on its website.

To understand how Noibu has become a mission-critical part of Carrefour's ecommerce operations, we sat down with Jean Philippe Blerot (Head of Digital & Ecommerce Projects), Olivier de Koster (Ecommerce Product Owner), and Jessica Varisano (Digital Product Owner).

The challenge: Hidden errors, dev bottlenecks, and revenue drain

Carrefour's ecommerce team faced three core challenges:

Undetected errors — Especially in high-impact areas like checkout and product pages
Lack of visibility — No clear link between bugs and lost revenue
Slow debugging — Developers spent weeks reproducing and fixing issues

While the team could often see symptoms of a problem, they lacked the technical visibility to go deeper.

“We were aware of issues before Noibu, we could see them, but there wasn’t enough information to relate back to the issue at a code line level."
— Olivier De Koster, Ecommerce Product Owner

“The biggest pain point was that we couldn’t find exactly where on the code the issue was, and it was very difficult to dive into the code in order to see what provoked the issue.”
— Jessica Varisano, Digital Product Owner

Even when a bug could be replicated, fixing it remained a time-consuming process:

"We could replicate [an error], but in order to do that, many of our developers needed to try and replicate the error to confirm its validity. And even if we found and validated a bug, we didn't actually know what needed to be done in order to solve it."
— Jean Philippe Blerot, Head of Digital & Ecommerce

With no ability to link issues to lost revenue, the team was left guessing which problems to tackle first.

The solution: How Noibu helped Carrefour transform site monitoring

Carrefour integrated Noibu’s ecommerce error monitoring platform to:

Detect all customer-impacting bugs
Attribute revenue loss to specific errors
Surface root causes instantly
Automate and prioritize dev tasks

This allowed the team to:

Fix critical errors faster
Eliminate guesswork in sprint planning
Protect and recover revenue at scale

"If Carrefour didn't have a tool like Noibu, I imagine it would take a minimum of one week to understand a bug, and then two weeks to try and solve it. That's just too much time."
— Jean Philippe Blerot, Head of Digital & Ecommerce

Short-term wins: From reactive to proactive

In the first year of using Noibu, Carrefour:

Cleared a large backlog of unresolved bugs
Recovered $383k+ in potential lost revenue
Achieved a 49.5x ROI
Reduce dev time spent on bug triage

Long-term impact: Noibu embedded in Carrefour's tech stack

Today, Noibu is a core part of Carrefour Belgium’s ecommerce strategy, not just a one-time fix. It offers:

Proactive error monitoring across browsers, devices, plugins, and scripts
Quantifiable impact analysis for every bug
Streamlined developer workflows and sprint planning
Fewer customer issues, better conversion rates

Time spent on error resolution dropped to just 10–20% of dev time, a major reduction from the past.

"It's all about [maintaining] the quality of the code and to help the development team work quickly. Time is money so it's important for us to help the team work as efficiently as possible."
— Jean Philippe Blerot, Head of Digital & Ecommerce

What makes Noibu stands out

Unlike session replay or basic alerting tools, Noibu goes deeper by connecting technical bugs to business outcomes. This means:

No more random ticket triaging
No more time-consuming replication steps
Devs know exactly which bugs to fix first

"The biggest win of having Noibu on board long-term is the continuous prioritization support and the guidance it provides our dev team in navigating our [error tickets]."
‍— Jean Philippe Blerot, Head of Digital & Ecommerce

Results summary

Outcome	Impact
Recovered revenue	$383K+ in annual revenue opportunities
Return on investment	49.5x ROI from platform implementation
Dev workflow	Prioritized and structured development processes
Site visibility	Improved visibility into health across Salesforce Commerce Cloud (SFCC)
User experience	Stronger UX with fewer frontend and backend errors