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WATCH40 in Action: €10,000 spent in one hour… stopped just in time

  • Writer: Sophie Langlois
    Sophie Langlois
  • Sep 28, 2025
  • 2 min read

Updated: Oct 9, 2025


Advertising algorithms are powerful : they learn fast, optimize relentlessly, and scale performance efficiently.

But when they’re fed the wrong signal, they can turn into runaway engines of overspend.

Here’s a real-world case showing how WATCH40 prevented a massive budget leak and why even the smartest algorithms need active oversight.


The context: a Google Ads campaign in optimization phase

A Google Ads campaign was running smoothly with an open budget. During a monitoring phase, the media team made a routine optimization: adjusting targeting parameters and bidding strategy to improve performance.

But one small configuration error slipped through. Within minutes, the algorithm reacted, aggressively. It scaled up spend at full speed, consuming over €10,000 in less than one hour before anyone could manually spot the anomaly.


The WATCH40 alert: real-time detection, instant action

That’s when WATCH40 stepped in. Its real-time overspend detection feature identified an abnormal spending pattern within seconds.

Immediately:

  • A real-time email alert was sent to media managers,

  • The WATCH40 dashboard displayed the exact campaign, platform, and anomaly details,

  • The escalation system flagged the incident as critical.


Managers were able to react within minutes: they paused the campaign, reviewed the setup with their team, and confirmed a human error as the root cause.

What could have turned into a catastrophic budget loss was contained almost instantly.


The avoided impact: €200,000 of potential loss

Without WATCH40’s intervention, the campaign would have continued spending at the same pace — around €200,000 per day, representing a potential €1,000,000 overspend in just one week.

Beyond the savings, the incident reinforced confidence in the monitoring system and the collaboration between operations, management, and finance.


Operational governance and vigilance, powered by intelligent automation

This case highlights two critical strengths of WATCH40:

  • Its ability to detect what humans can’t monitor continuously,

  • Its hierarchical alert system that engages the right level of response depending on the risk.


By combining automation, AI, and governance, WATCH40 ensures full visibility and protection across your digital media operations.

WATCH40 is more than a QA tool, it’s an intelligent sentinel safeguarding your activations, your budgets, and your teams.

 
 
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