CRO

Error Tracking

A practical product and CRO method for identifying failures, understanding impact, and prioritising the issues that matter most.

How to use error tracking to capture failures, understand where users hit problems, and prioritise fixes based on real impact.

13 September 20234 min read

Quick take

If something is breaking for users and you do not know where or why, start with error tracking.

What it is

Error tracking is a quantitative UX and product method used to capture, monitor, and analyse errors that occur during user .

This includes technical errors such as failed API calls, form validation failures, broken links, crashes, and exceptions.

It provides visibility into when something goes wrong, where it happens, and how often it occurs.

Unlike behavioural methods, error tracking focuses on failures in the experience rather than general usage.

The goal is to identify, prioritise, and fix issues that directly impact , , and .

Error tracking is useful when the main problem is not behaviour alone, but where the product is breaking for users.

When to use it

Use this method when and matter.

It is most useful when:

You are identifying bugs or system failures
You want to understand where users encounter errors
You are improving form completion or checkout flows
You need to prioritise fixes based on impact
You are monitoring product health over time

It is less useful when:

You need to understand user intent or behaviour
Errors are not being properly captured or logged
The issue is conceptual rather than technical
Error tracking is often used alongside funnel analysis and session replay analysis to understand both the impact and context of issues.

Key takeaway

Use error tracking when failures, instability, or technical breakdowns are affecting the user experience and you need to prioritise fixes.

How to run it

Set up properly.

Before you start, be clear on what types of errors you want to track, how errors are captured and logged, and how errors are categorised and prioritised.

Ensure tracking covers both front-end and back-end issues.

Run the method.

Error tracking is continuous and -driven.

Capture errors across the product in real time. Log details such as location, device, and user . Group similar errors together. Measure frequency and impact. Prioritise based on severity and user impact.

Focus on and high-impact issues.

Capture and make sense of it.

The value comes from understanding where failures affect users.

Look across to identify recurring errors, high-frequency issues, critical failures in key , and differences across devices or .

Use this to guide and fixes.

What to look for

Focus on:

Error frequency
How often issues occur
Severity
The impact on the user experience
Location
Where in the journey errors happen
Patterns
Repeated issues across users or sessions
Impact on conversion
Whether errors cause drop-offs or failures

Where it goes wrong

Most issues come from:

Not all errors matter equally. Focus on impact.

incomplete or inconsistent tracking
lack of context around errors
failing to prioritise effectively
ignoring user impact
treating all errors equally

What you get from it

Done properly, this method gives you:

visibility of system and usability failures
understanding of where users encounter issues
prioritised list of fixes based on impact
improved stability and user experience

Key takeaway

It helps you remove friction caused by things breaking.

Get in touch

If this sounds like something you need, we can help you identify what is breaking, prioritise fixes, and improve the overall experience.

No guesswork. No assumptions. Just clear you can act on.

FAQ

Common questions

A few practical answers to the questions that usually come up around this method.

What is error tracking in UX?

Error tracking is a method used to capture and analyse errors that occur during user .

When should you use error tracking?

Use it when monitoring product , identifying bugs, or improving .

What types of errors should be tracked?

Technical errors, form validation failures, broken links, crashes, and exceptions.

What tools are used for error tracking?

Tools such as Sentry, Datadog, LogRocket, and New Relic are commonly used.

Does error tracking improve UX?

Yes. Fixing errors directly improves , , and .

LET'S WORK TOGETHER

Ready to improve your product?

UX, research and product leadership for teams tackling complex digital services. The work usually starts where things have become harder than they need to be: unclear journeys, inconsistent products, competing priorities, or teams trying to move forward without a clear direction. I help simplify the problem, shape the right next step, and turn complexity into something people can actually use.

Previous feedback

Will Parkhouse

Senior Content Designer

01/20