WATCH40 in Action: Preventing 3 days of invisible conversion loss
- Sophie Langlois

- Sep 24
- 2 min read

Some media errors don’t generate overspend.They create emptiness, a void of data, performance, and control. And that can be even more dangerous.
Here’s a use case showing how WATCH40 monitors the invisible.
The context: a performing campaign, a broken tracking setup
An e-commerce site was running several acquisition campaigns on a solid media plan. Suddenly, without any alert from the usual tools, conversion volume on one platform collapsed. The campaigns were still running. But no conversions were being tracked.
The WATCH40 detection: abnormal behavior automatically identified
Based on the behavioral history of the campaigns, WATCH40 technology instantly spotted a suspicious drop in conversion volume over an unusual time window. The system raised a real-time alert, flagged as high criticality.
The error confirmed: a data layer mishandling
After investigation, the media teams discovered the source: a change in the data layer made by the product team. That modification had inadvertently disabled the conversion pixels linked to media platforms. As a result, no conversions were tracked or attributed to the campaigns.
Without WATCH40, the campaigns could have continued like this for days, with media teams completely blind to the issue.
The fix: fast, precise, collaborative
Media teams were alerted immediately
The root cause was identified and handed off to the product team
The data layer implementation was corrected
Tracking was restored in just a few hours
3 days of lost control avoided
The estimate: 3 full days of lost campaign steering were avoided, representing hundreds of thousands of euros in unattributed spend, unreadable performance, and potentially wrong decisions.
WATCH40: the intelligent control tower
This case shows that WATCH40 doesn’t just monitor spend. It detects weak signals, unexpected behaviors, and unusual drops in performance without waiting for human reporting.
That’s the difference between a dashboard tool and a proactive safety solution.



