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Knowledge Base

Understanding Ecommerce Replatforming

Ecommerce replatforming is one of the most significant technology decisions an organisation can make. It affects far more than your ecommerce platform. It influences integrations, customer experience, operational processes, reporting, governance and future digital capability.

This Knowledge Base page provides independent reference material explaining the terminology, concepts and systems commonly encountered during ecommerce replatforming projects.

This page provides factual reference material. For opinion, analysis and practical guidance, explore our related Insights and service pages.

What is ecommerce replatforming?

Ecommerce replatforming is the process of replacing, rebuilding or significantly restructuring an organisation's ecommerce platform. This may involve moving from one platform to another, modernising legacy technology, adopting composable architecture or redesigning integrations with surrounding business systems.

Successful replatforming extends well beyond software selection. It typically includes business process review, solution architecture, systems integration, customer experience design, governance, data migration, testing and organisational change.

Why organisations replatform

Legacy technology has become difficult to maintain.
The current platform no longer supports business growth.
B2B or international capability is limited.
Integration with ERP, PIM or CRM systems is becoming increasingly complex.
Performance, security or scalability requirements have changed.
The business wants to improve customer experience or operational efficiency.

What this page covers

The glossary below explains many of the terms, systems and concepts that appear during a typical ecommerce replatforming programme.

Reference

Key terminology

Plain-English definitions for the terms, systems and concepts commonly used in this area.

Core Concepts

Ecommerce Replatforming

Platform replacement or major rebuild

The process of replacing, rebuilding or significantly restructuring an ecommerce platform and its surrounding technology ecosystem.

Platform Migration

Moving from one platform to another

The transfer of ecommerce functionality, data, integrations and operational processes from an existing platform to a new platform.

Technical Debt

Accumulated technology compromise

The cost and complexity created by historic shortcuts, outdated code, poor architecture or workarounds that make future change harder.

Legacy Platform

Older or constrained technology

An existing ecommerce platform that has become difficult to maintain, extend, integrate or scale.

Architecture

Headless Commerce

Separated front end and back end

An architecture where the customer-facing front end is separated from the commerce back end, often connected through APIs.

Composable Commerce

Modular commerce architecture

An approach where specialist systems are combined to form a commerce architecture rather than relying on one platform to provide every capability.

API

Application Programming Interface

A method that allows systems to communicate with one another and exchange data or trigger actions.

Middleware

Integration layer

Software that connects different systems, manages data flows and reduces direct dependency between platforms.

Systems and Integrations

ERP

Enterprise Resource Planning

A core business system used to manage processes such as finance, inventory, purchasing, operations and order processing.

PIM

Product Information Management

A system used to manage product data, attributes, descriptions, images and other product content across channels.

OMS

Order Management System

A system used to manage orders across channels, including routing, fulfilment, status updates and exceptions.

WMS

Warehouse Management System

A system used to manage warehouse processes such as picking, packing, stock movement and fulfilment.

CRM

Customer Relationship Management

A system used to manage customer data, sales activity, relationship history and customer interactions.

Project Delivery

Discovery

Initial investigation and definition

The early phase of a project where requirements, systems, constraints, risks, users and business goals are explored before detailed delivery begins.

RFP

Request for Proposal

A formal document used to ask vendors or implementation partners to propose an approach, scope, timeline and commercial model.

Scope

Defined project boundaries

The agreed work, deliverables, requirements and exclusions that define what a replatforming project will and will not include.

Systems Integrator

Implementation partner

A partner responsible for configuring, integrating and delivering technology systems as part of the replatforming programme.

Testing and Launch

UAT

User Acceptance Testing

Testing performed by business users to confirm that the new platform works as expected against real-world scenarios.

Regression Testing

Checking existing functionality still works

Testing used to confirm that changes have not broken existing features, processes or integrations.

Cutover

Switch from old to new

The planned process of moving live trading, users, data and operations from the old platform to the new platform.

Rollback Plan

Fallback plan

A plan that describes what happens if launch fails or critical issues require the business to revert to a previous state.

Governance

Steering Committee

Senior decision-making group

A governance group responsible for making key decisions, resolving escalations and maintaining alignment between business goals and project delivery.

Business Case

Commercial rationale

The justification for investment, usually including costs, expected benefits, risks, assumptions and strategic objectives.

Change Control

Managing scope change

A process for reviewing, approving and managing changes to scope, budget, timeline or requirements.

RACI

Responsibility matrix

A model used to clarify who is responsible, accountable, consulted and informed for decisions or activities.

Commonly confused terms

Replatforming terminology is often used inconsistently. A few distinctions are especially important.

Replatforming is not the same as a redesign. A redesign changes the user interface; replatforming changes the underlying commerce technology.
Headless is not the same as composable. Headless separates the front end from the back end; composable combines multiple specialist systems.
Migration is not only data movement. It can also involve integrations, content, redirects, customer records, order history and operational processes.
Platform selection is not solution architecture. Selecting a platform is one decision; designing how it fits into the wider business system is another.

Typical ecommerce replatforming ecosystem

A modern ecommerce platform rarely operates in isolation. It may connect with ERP, PIM, CRM, OMS, WMS, payment providers, tax tools, search, analytics, email platforms and integration middleware.

FAQ

Common questions

Short answers to common questions about this topic.

01 of 07

Ecommerce replatforming is the process of replacing, rebuilding or significantly restructuring an organisation’s ecommerce platform. It usually involves more than a website change because the platform often connects to ERP, PIM, CRM, payment, search, analytics and operational systems.

Knowledge Base

Related knowledge

Explore adjacent topics and reference pages.

Technology

Definitions for ERP, PIM, OMS, WMS, CRM, APIs and the wider systems used in ecommerce and digital transformation.

View

Architecture

Reference material covering APIs, middleware, integrations, data flows and composable architecture.

View

Governance

Terminology covering steering committees, RACI, decision-making, business cases and transformation control.

View

Insights

Related insights

Opinion, analysis and practical interpretation from Right Partners.

Ecommerce Platform Selection

How to approach ecommerce platform selection without letting vendors or implementation partners define the decision too early.

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Digital Steering Committee & Ecommerce Governance

Why ecommerce and transformation programmes need clear ownership, decision-making and governance.

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Ecommerce Capability Gap for UK Manufacturers

Why many manufacturers struggle to turn ecommerce investment into meaningful commercial progress.

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The Right Framework

The strategic model behind Right Partners: the right things, people, places, time and way.

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When Your Ecommerce Agency Is Underperforming

How to diagnose whether poor progress is caused by agency performance, unclear governance or internal capability gaps.

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Services

Related services

Where this knowledge connects to practical advisory support.

Technology Strategy

Independent support for evaluating platforms, systems and technology decisions.

View

Ecommerce Solution Architecture

Support with designing how platforms, systems, integrations and operating processes fit together.

View

Fractional Ecommerce Leadership

Senior ecommerce leadership support for organisations that need strategic direction and delivery governance.

View

Digital Transformation Governance

Governance support for transformation programmes involving multiple stakeholders, systems and partners.

View

Need independent advice?

Every replatforming programme is different.

If you are evaluating platforms, planning a migration or reviewing your existing technology landscape, Right Partners can help you think through the next move without platform bias.

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