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Booker Direct connection · Wholesale Last reviewed: August 2026
🇬🇧 UK Direct

Booker EDI,
working in the background.

Supply Lens automates the Booker supplier document cycle. Purchase orders in, invoices out, transmitted directly and mapped to your ERP or IMS with the right depot codes, supplier IDs and Booker tolerance rules built in.

Orders in
Purchase orders handled automatically
Every Booker PO lands in your ERP without manual intervention
Direct connection
Nothing to set up on your side
Direct link to Booker's gateway, set up and maintained by us
Fewer deductions
Invoices checked before they're sent
Validated against your agreed Booker tolerance rules before transmission
99.9%
Uptime SLA
Monitored around the clock, helping keep documents within transmission windows
Supply Lens · Booker Live Flow Live
Booker PO BKR-2026-58102 received via direct connection · 48× line A · 24× line B · DC routing resolved PO IN
EANs mapped · location resolved DC code matched · supplier code confirmed · pricing applied PROCESSING
Sales order SO-78103 created ERP / IMS · 72 units · ref BKR-2026-58102 CREATED
Invoice validated Price matched against PO · agreed cost list confirmed · ready to send CHECKED
Invoice transmitted to Booker £12,840.50 · invoice INV-78103 confirmed received SENT
Booker-Specific Requirements

Orders in, invoices out.
The detail is in the rules.

Booker's flow looks straightforward on paper. The work is in the supplier and location codes, the tolerance rules on every invoice and the format Booker expects each message to follow. Get any of it wrong and you eat a deduction. Supply Lens is configured for those rules out of the box.

Direct connection

Booker receives supplier documents through a direct connection. Supply Lens manages the certificates, the partner profile and the gateway on your behalf, so you have no gateway of your own to build, run or maintain.

Message format handled

Booker uses the long-established UK retail message format, as most large UK retailers still do. Supply Lens generates and reads it correctly so the format stays invisible from your ERP's point of view. The order just arrives.

EAN to item code mapping

Booker identifies products by GS1 EAN and an internal article reference. Supply Lens maintains a cross-reference table mapping both to your own item codes, so the PO lands correctly in your ERP regardless of which identifier Booker sends.

Invoice tolerance rules

Booker applies strict invoice matching on price and quantity. Supply Lens validates the invoice against the originating PO and your agreed cost list before transmission, flagging any discrepancy for review rather than sending it and risking a deduction later.

Distribution centre routing

Each Booker PO names a destination DC by code. Supply Lens maps every active Booker location to the correct routing in your warehouse system, so the order lands against the right depot in your ERP without manual intervention.

Cost list and pricing rules

Your agreed Booker cost list is registered in Supply Lens. Promotional pricing, cost changes and tier breaks are all applied automatically when an invoice is generated, so the price Booker sees on the invoice always matches what was agreed.

Document Flow

Every document.
Every direction.
Automatically.

Supply Lens handles the full Booker document set inbound and outbound, so documents are produced and transmitted automatically, without manual rekeying.

  • Purchase orders received and validated against your supplier profile
  • Invoices pre-validated against the PO and your agreed Booker cost list before transmission
  • Credit notes raised and transmitted when returns or adjustments occur
  • Tolerance, location and pricing rules applied per message automatically
  • All Booker-specific document structures generated and read correctly without your team seeing the format
Booker document cycle
Purchase Order INBOUND
Booker
Invoice (pre-validated) OUTBOUND
Booker
Credit Note OPTIONAL
Booker
What's mapped automatically
Booker reference Resolved automatically
DC location codes
Pre-loaded
Product EANs and article references
Resolved per order
Cost list and promotional pricing
Applied per line
Tax and currency
UK VAT, GBP
Configuration

Configured for Booker.
Connected to your
system.

Supply Lens holds Booker's rules and the connection itself so you don't have to. Your team provides credentials, product mappings and the agreed cost list. Everything else lives in the Supply Lens layer.

1

Booker supplier onboarding

Your Booker supplier code, GLN and trading partner profile registered with Booker's gateway. Supply Lens manages the connection identifiers and certificates, so there is no setup needed your side.

2

EAN and article cross-reference

Booker EANs and article references mapped to your item codes. Pack-size variants, promotional lines and multi-pack SKUs are handled automatically once their cross-reference is established.

3

DC routing and entity mapping

Each Booker DC code mapped to your correct warehouse, customer account or entity in your ERP, so orders route cleanly to the right despatch point on receipt.

4

Tolerance and pricing rules

Your agreed Booker cost list registered for invoice validation. Tolerance rules applied per supplier agreement, so price discrepancies surface your side first.

EAN → item code cross-reference
Booker reference Your item code
50130011145001 CRSP-SAL-150G
50130011145002 CRSP-CHE-150G
50130011145003 CRSP-VIN-150G
art:4019822-A SUPP-BK-4019822
Order ingest
Direct connection
ON
SO creation
On PO ingest
ON
Invoice validation
PO match check
ON
Invoice out
On despatch
ON
Cost list
Per-line pricing
CONFIG
Exception queue
Email + dashboard
CONFIG
Booker Edge Cases

The situations that
catch suppliers out.

Supply Lens handles the scenarios that typically cause invoice rejections, deductions or document mismatches in the Booker flow.

"Booker send documents in a format our system cannot read. We've been doing it manually for months."

The format never reaches your system. Supply Lens turns Booker's purchase order into a clean payload your ERP already understands and renders your outbound invoice in the structure Booker requires on the way back out. Your team works in their normal interface, the format conversion happens in the Supply Lens layer.

"Booker deducted against an invoice because the unit price was a few pence off the agreed cost list."

Invoice values are validated against the originating PO and your agreed Booker cost list before submission. Discrepancies are flagged before the invoice is sent, giving your team a chance to correct or query rather than receive a Booker deduction weeks later.

"A new Booker promotional line started arriving and our system rejected the order because the price didn't match."

Promotional pricing is held against your Booker cost list and applied per line at invoice time. New promotional EANs map to existing items where possible. Any unmapped reference goes to an exception queue immediately rather than rejecting the order outright.

"A new Booker EAN started arriving and our system rejected the order because the product wasn't mapped."

Unrecognised EANs go to an exception queue immediately. The PO is held, your team is notified with the full Booker context, the mapping is added and the order is re-triggered. No silent drop, no late invoice, no missed delivery window.

Getting Set Up

What you need to
go live with Booker.

Booker onboarding involves their supplier team, the connection setup and your internal product and pricing data. Supply Lens manages the configuration, the gateway and the format conversion. You provide the inputs.

  • Booker supplier code and any associated GLNs
  • Product EAN list with your internal item codes
  • Booker article reference cross-reference where used
  • Active DC routing confirmation
  • Agreed Booker cost list for invoice validation
  • Promotional pricing schedule where applicable
  • ERP or IMS credentials (Unleashed, Enterpryze or other)
  • Sample Booker purchase orders where available
  • Tolerance rules confirmation per supplier agreement
Typical delivery timeline
Day 1

Supplier data & credentials

Booker supplier code, GLNs, ERP credentials and cost list received

Day 2–3

Mappings built

EAN cross-reference, DC routing and pricing configuration completed in staging

Day 4–5

End-to-end test

Test purchase order processed, invoice generated and validated against Booker's specification

Live ✓

Go live

Production enabled, first live Booker PO processed end-to-end

ERP & IMS Connections

Connect Booker to your back-office system.

Supply Lens routes Booker POs directly into Unleashed, Enterpryze or other connected ERPs with the right item codes, document series and DC routing.

Ready to automate
your Booker EDI?

Most suppliers are live within five days. No long contracts, nothing to set up on your side. We handle the Booker-specific configuration, you confirm the mappings.