E‑commerce Data Normalization

Raw scraped data is messy. We make it analysis‑ready.

Every retailer names things differently — “Colour” vs “Color”, centimetres vs inches, EUR vs USD. Our normalization pipelines clean, standardise, and unify product data from any source, mapping every attribute to your internal schema, converting units, and merging duplicates. The result: a single, trustworthy product feed that drops directly into your BI tools, PIM, or pricing engine.

Trusted by catalog and data quality teams
1B+Records normalized annually
99.9%Field consistency post‑normalization
2–3 wksTypical pipeline delivery
normalization-rules.yaml
# Raw data in → clean, standardised data out
rules:
  - map: "Colour""color"
  - unit_convert: "weight_oz""weight_g" (*28.35)
  - currency: "EUR→USD" (daily rate)
  - size_normalize: "US‑letter""EU‑numeric"
output: "snowflake.products_normalized"
🔄 Units converted
4,200 records this hour
🗂️ Schema aligned
142 source fields → 38 canonical

Normalization pipelines running for

CleanCatalog StandardIQ UnifyData NormalizePro SchemaSync ConformLab CleanCatalog StandardIQ UnifyData NormalizePro
Overview

Stop cleaning product data by hand

Product normalization is the final, essential step that turns raw web‑scraped data into a business asset. It automatically resolves the inconsistencies that come from collecting product information from multiple retailers — unifying attribute names, converting measurement units, normalising prices to a single currency, and standardising date and status formats. Instead of spending hours in spreadsheets, your team gets a clean, consistent dataset delivered on schedule.

We build a custom rule engine mapped to your internal taxonomy. Once live, every new product record passes through these rules before landing in your warehouse — guaranteeing that every “colour” is spelled “color”, every weight is in grams, and every date is in ISO 8601.

  • Attribute name mapping to your canonical schema
  • Unit conversion (imperial ↔ metric, apparel sizes)
  • Currency normalisation with configurable rate sources
  • Date, status, and category standardisation
  • Duplicate detection and merge with configurable survivorship
Business challenges

Why “just export to CSV” leaves you with a data mess

Raw scraped data is full of hidden inconsistencies that break dashboards, corrupt repricing rules, and waste analyst hours.

01

Every retailer speaks a different dialect

One calls it “Colour”, another “Color/Finish”, a third uses “Farbe”. Without a mapping layer, you can’t filter, compare, or merge product records across sources.

02

Units are all over the place

A US site lists a laptop weight as 4.2 lbs; a German site lists the same model as 1.9 kg. Your comparison dashboard doesn’t know they’re the same — until you normalise to a single unit.

03

Duplicates inflate your catalog size

The same product may appear under slightly different titles or SKUs from different retailers. Without deduplication and merging, your competitive analysis is based on inflated counts and wrong averages.

Our solution

A rule engine that cleans as it collects

Normalization happens in‑flight — data is transformed the moment it’s extracted, before it ever reaches your warehouse.

Canonical attribute mapping

We map every source field to your internal taxonomy — “Colour” becomes “color”, “Material” becomes “fabric”, and so on. The mapping document is reviewed and signed off by your team.

Unit & currency conversion

Define your target units (metric, imperial) and base currency once. Every incoming value is automatically converted — weight, dimensions, volume, and price.

Regional size normalisation

Convert apparel and footwear sizes between US, UK, EU, and JP standards using configurable tables — so “M” and “38” land in the same column.

Duplicate detection & merging

Identify and merge records that represent the same product, using configurable survivorship rules (e.g., keep the most complete attributes, average the prices).

transform-log.json
// In‑flight transformation log
{
  "source": "retailer‑a",
  "transformations": [
    "Colour → color",
    "Weight (oz) → weight_g (x28.35)",
    "Price EUR → USD (x1.09)"
  ],
  "status": "normalized — ready for warehouse"
}
Process

From raw extract to a spotless, standardised dataset

1

Schema & rule scoping

We review your internal taxonomy and the raw fields from each target retailer, then build a mapping document with unit and currency preferences.

2

Normalization rule engine build

Our engineers codify the rules into an in‑flight transformation pipeline. Every record is cleaned the moment it’s extracted.

3

Sample output & validation

A normalized sample dataset is delivered in your schema. You validate field mappings, unit conversions, and duplicate handling.

4

Production feed & ongoing maintenance

Normalized data flows on your schedule. We monitor for new source fields and update rules proactively — your schema stays consistent forever.

What you receive

Deliverables for every normalization engagement

1
Week 1

Attribute mapping & rule specification

A comprehensive document mapping every source field to your canonical attributes, with unit, currency, and size conversion rules — approved by your data governance team.

2
Week 2

Normalized sample dataset

A representative sample of products, fully normalized, delivered in your schema. You verify that every transformation is correct before full‑scale rollout.

3
Week 3

Production normalization pipeline + runbook

All incoming data is normalized in real time. A runbook documents the mapping, conversion rules, and how to add new attributes or retailers.

Ongoing

Monthly schema health report

Summary of any new source attributes detected, rule updates applied, and overall data quality metrics — shared proactively with your team.

1B+
Records normalized annually
99.9%
Field consistency rate
200+
Attribute mapping schemas built
across all industries
2–3 wks
Average pipeline delivery
Who needs normalization

Every team that feeds scraped data into downstream systems

🗂️

Product Information Management

Feed your PIM with clean, pre‑normalized competitor data that matches your internal attribute structure exactly.

📊

Business Intelligence & Analytics

Eliminate hours of spreadsheet cleanup — normalized data plugs directly into Tableau, Looker, or Power BI.

🏷️

Dynamic Pricing

Ensure your repricer compares apples to apples — every competitor price is in your base currency, with tax treatment consistent.

🛒

Multi‑Retailer Assortment Analysis

Compare category breadth, pricing, and availability across retailers using a single, standardised data model.

Why choose managed normalization

Product normalization vs. manual data cleaning

Capability Managed Normalization Manual Spreadsheet Cleaning In‑House Scripts
Attribute name mapping±±
Unit & currency conversion±
Regional size normalisation
In‑flight, automated cleaning
Ongoing rule maintenanceIncludedYour teamYour team
Time to analysis‑ready data2–3 weeksWeeks per batchMonths to build
What normalization users say

“Our analysts stopped cleaning data and started using it”

★★★★★

"We were spending 15 hours a week manually converting sizes, currencies, and colour names. Now every record lands in Snowflake already in our format. Our analysts haven't touched a spreadsheet in months."

CC
Data Operations ManagerCleanCatalog
★★★★★

"The attribute mapping document they produced became our de facto data dictionary. We now enforce the same standards across our own internal systems — it's had a ripple effect on data quality everywhere."

SI
VP of Data GovernanceStandardIQ
★★★★★

"The duplicate merging alone saved us from a major pricing error. We had the same product listed under three slightly different titles across retailers — their normalization pipeline merged them, and we avoided repricing against ourselves."

UD
Head of Competitive IntelligenceUnifyData
Integrations

Normalized data lands exactly where your teams expect it

Schema‑aligned, clean, and ready to query — no manual formatting, no import wizards.

🗄️
Amazon S3
❄️
Snowflake
🔷
BigQuery
🐘
PostgreSQL
🔗
Webhooks (JSON)
📄
CSV / JSON / Parquet

Get a scoped quote for your normalization project

Share a sample of your raw data and your target schema — we’ll return a normalized sample and a fixed‑price estimate within two business days.

Frequently asked

Common questions about product normalization

Product normalization is the process of cleaning, standardising, and unifying product data collected from different e‑commerce sources. It includes converting units (e.g., cm to inches), mapping attribute names to a canonical schema (e.g., “Colour” → “color”), normalising currencies, standardising date formats, and removing duplicates — so all data fits into a single, analysis‑ready table.
Raw scraped data often contains inconsistencies: size may be listed as “M” on one site and “38” on another, prices may include or exclude tax, and dates may follow different regional formats. Normalization applies rules — configurable by you — to unify all these variations. The result is a dataset that your BI tools, pricing engine, and PIM can process without manual cleanup.
Yes. During the scoping phase we align every source field to your canonical attribute names, unit preferences, and allowed value lists. We build a mapping document that you review and approve. Once live, every incoming record is automatically transformed before delivery — so your warehouse receives data in your language.
We can convert prices to a base currency using daily exchange rates, separate tax from list price where indicated, and add regional markup flags. You control whether prices remain in their original currency or are normalised.
Absolutely. All managed normalization pipelines include ongoing maintenance. If a retailer adds a new attribute or changes a field name, our team updates the mapping — typically before you notice a gap in your data.

Your raw product data, transformed into a spotless, analysis‑ready dataset

Send us a sample of your scraped data and your target schema. We’ll return a normalized sample within two business days — no commitment, no sales pitch.

Most normalization pipelines deliver the first clean dataset within 2–3 weeks of kickoff.

99.9% field consistency Custom attribute mapping Ongoing rule maintenance
From the blog

Insights on retail pricing strategy

🚀 Start Your Data Project

Get a Free Data Sample

See exactly what our data looks like before you commit. No credit card required, no spam — unsubscribe anytime.

  • Custom sample matching your target cuisines and cities
  • Full JSON/CSV export of live menus
  • Dedicated food data expert walkthrough
  • POC turnaround within 24 hours

Start Extracting Data Today

Tell us your requirements and get a custom quote within 2 Working Hours.