EDI Trading Partner

Connect to Westex EDI Instantly

Join thousands of customers that connect to Westex with XEDI.

No credit card needed ✦ Free EDI mailbox included

See how XEDI connects suppliers to Westex

Overview

Getting started with Westex EDI

XEDI helps Westex teams manage the order, fulfilment and invoice information used in retail, wholesale or marketplace supply. The connection reduces manual re-keying while keeping document status and exceptions visible to the people responsible for delivery and payment.

Purchase orders Order acknowledgements and responses Invoices Credit notes or adjustments where required Product, catalogue or stock data where required

Explore XEDI for Westex

Documents you can exchange

  • Purchase orders
  • Order acknowledgements and responses
  • Invoices
  • Credit notes or adjustments where required
  • Product, catalogue or stock data where required
Who it's for

Built for Westex suppliers

Whether you send a handful of orders a week or thousands a day, XEDI keeps your Westex trading accurate and hands-off.

  • Suppliers and manufacturers
  • Commercial and order-processing teams
  • Warehouse and fulfilment teams
  • Customer-service teams
  • Finance and accounts receivable teams
In practice

Westex EDI overview

Westex EDI is the structured exchange of commercial documents between Westex and businesses working in retail, wholesale or marketplace supply. The agreed document set starts with orders and invoices, with the operational emphasis on keeping order and invoice records aligned across operational teams.

A practical Westex integration should connect orders and invoices with the systems responsible for processing them. XEDI maps the agreed Agreed EDI format messages into ERP, warehouse, accounting or API workflows, while validation and alerts help teams deal with exceptions before they affect delivery or payment.

Every document validated before it moves

XEDI checks each Westex order, despatch advice and invoice against the required format, so errors are caught before they reach your systems.

Onboarding

Westex supplier onboarding process

For Westex, onboarding starts with the account identifiers, document scope and connection route used by the relationship. XEDI then maps, tests and monitors the agreed workflow so teams can move from first order to stable live trading with clear ownership of exceptions.

  1. 01

    Confirm the Westex supplier account, buyer contacts, delivery locations, identifiers and current document requirements.

  2. 02

    Agree the Westex order, response and invoice scope for the trading relationship.

  3. 03

    Map Westex message data to the supplier's ERP, warehouse, order-management and accounting systems.

  4. 04

    Configure Agreed EDI format validation, connection routing, exception alerts and user responsibilities in XEDI.

  5. 05

    Complete the agreed Westex test transactions, checking mandatory references, product data, delivery details and invoice matching.

  6. 06

    Monitor initial live transactions and resolve rejected, delayed or mismatched documents with the operational and finance teams.

Ready to connect Westex?

Talk through documents, standards, testing and system integration with XEDI.

Detail

Everything about Westex EDI

Westex EDI message types

Westex document requirements depend on the commercial relationship and fulfilment route. The following business documents are reviewed when planning the order-to-invoice workflow.

Message Purpose Direction
Purchase order Purchase order with item, quantity, price, delivery location and requested delivery details. Westex to supplier
Order acknowledgement Order acknowledgement or response used to confirm, reject or amend order lines before fulfilment. Supplier to Westex
Invoice Invoice linked to the order, delivery and supplier references agreed with Westex. Supplier to Westex
Application acknowledgement Application or functional acknowledgement used to confirm receipt or identify processing errors where supported. Either direction
Westex EDI requirements

Requirements planning should confirm the account identifiers, document scope and connection route used by Westex. Planning should also account for the transport and validation controls used for retail, wholesale or marketplace supply.

Agreed EDI format

Map the agreed Westex order, response and invoice messages in the Agreed EDI format format used by the trading setup.

AS2 or managed connectivity

Use AS2, SFTP, a VAN or the connection method agreed with Westex, with secure routing and delivery-status monitoring.

Product and location references

Validate agreed product identifiers, pack data, ship-to or depot locations and supplier references before a document is sent.

Testing and go-live

Test the agreed Westex message set, resolve validation feedback and retain evidence that the connection is ready for live trading.

Common requirements & compliance

Common requirements

  • Westex supplier account, trading partner and buyer identifiers
  • Product identifiers, SKUs, GTINs, pack sizes and agreed item descriptions
  • Delivery, depot, warehouse or ship-to references
  • Invoice, tax, payment and remittance references
  • Agreed Agreed EDI format message set and connection method
  • Test evidence for the agreed order and invoice flows

Compliance notes

  • Westex document requirements can vary by category, region, delivery route and fulfilment model.
  • Supplier, product, location and invoice references must match the trading agreement and test data.
  • Use pre-send validation and exception monitoring to reduce rejected Westex orders and invoices.
Westex ERP integration
Why suppliers choose XEDI for Westex

Businesses choose XEDI for Westex EDI when they need a managed connection focused on keeping order and invoice records aligned across operational teams, with the agreed documents, validation rules, integrations and exceptions visible in one workflow.

  • Westex-specific onboarding for identifiers, document scope, testing and go-live planning.
  • Validation for Westex orders and invoices before documents are exchanged.
  • Agreed EDI format mapping with ERP, accounting, warehouse, API, AS2 and VAN connectivity options.
  • Exception alerts and monitoring for failed, delayed or rejected documents.
  • A managed workflow that reduces manual re-keying while keeping procurement, operations and finance teams informed.
Supplier FAQ

Westex EDI FAQs

What is Westex EDI?

Westex EDI is the structured exchange of documents between Westex and its suppliers. It supports agreed workflows for orders, order responses, delivery information, invoices and related acknowledgements.

Can XEDI connect suppliers to Westex EDI?

Yes. XEDI can connect Westex EDI flows with supplier systems and automate the agreed Agreed EDI format messages, subject to the account's document scope and testing process.

Which documents does Westex EDI support?

Every enriched XEDI partner page covers purchase orders and invoices. The wider Westex workflow can include order responses, credit notes, product information and acknowledgements where agreed.

Which EDI standard is used for Westex?

The exact Westex standard, version, message subset and connection route should be confirmed from the current trading agreement and test pack. XEDI can map the agreed format without assuming a universal specification.

Can Westex EDI use AS2?

XEDI can support AS2 where it is the agreed Westex connection route, including certificates, encryption, signatures and delivery-status monitoring.

Can Westex EDI integrate with my ERP or accounting system?

Yes. XEDI can map Westex documents into supported ERP, accounting, warehouse, ecommerce and API workflows, including SAP, Oracle, Sage, Microsoft Dynamics, NetSuite and QuickBooks.

What should a Westex supplier prepare before onboarding?

Prepare supplier and product identifiers, delivery locations, tax and invoice details, the agreed message list, connection details and any testing instructions supplied for the account.

How long does Westex EDI onboarding take?

Timing depends on the supplier systems, agreed message set, data quality, testing scope and Westex onboarding process. Confirming scope early helps prevent avoidable delays.

Can XEDI help reduce Westex order and invoice errors?

Yes. XEDI can validate mandatory fields, map references consistently and surface exceptions before documents are exchanged, reducing avoidable corrections in Westex order and invoice workflows.

Do Westex supplier requirements vary?

They can vary by category, region, fulfilment model and delivery route. The current Westex agreement and test instructions should always take priority over a general integration plan.

Related partners

Other UK trading partners

XEDI connects suppliers to Westex and thousands more. These are already wired and waiting.

Browse all trading partners

Next steps

Plan your Westex EDI setup

Everything you need to scope, map and go live with Westex, in one place.