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A home improvement retailer · Home Improvement · Retail

$90M+ GMVSingle Source of TruthFor: Head of Ecommerce

Making a replatform observable

Migrations break events, product feeds, and lifecycle triggers in ways that only show up in revenue weeks later.

6 hours
To catch migration breakages, down from weeks
$220K
At-risk revenue protected during cutover
Continuous
Event and feed validation through cutover
1
View of pre and post-platform numbers

Their unseen challenge

A migration with no safety net

Issue
  • Events, product feeds, and lifecycle triggers all changed shape during the cutover.
  • Historic reporting lived on the old platform and stopped reconciling with the new one.
Effect
  • Breakages surfaced through revenue, weeks after launch.
  • Nobody could prove whether a dip was seasonality or the migration.
Result
  • Blind cutover.
  • Slow post-launch diagnosis.
Impact
Cutover breakages caught in 6 hours, $220K at-risk revenue protected

The solution

Consequential through the migration

Events, feeds, and flows were validated continuously before, during, and after the cutover, with one reconciled view across both platforms.

Pre-cutover baseline

The old platform's event and revenue behaviour was captured as a baseline.

Live validation

Missing or malformed events were flagged within hours of launch.

Reconciled reporting

Pre and post migration numbers sit in one continuous view.

The results

What changed with Consequential

Breakages caught fast

Migration faults surfaced in hours rather than weeks.

Comparable numbers

Performance before and after the cutover could actually be compared.

Confident launch

The team shipped knowing what would be watched.

Permanent coverage

The monitoring stayed on after the project ended.

The risk was never the launch. It was the six weeks after, when nobody could tell what had broken.Head of Ecommerce, home improvement retailer

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