Merlyn Consult / Logistics & Supply Chain Insights
Updated for 2026
Digital Data Sharing in 2026: Connecting Systems, People and Supply Chains
The sales team confirms an order. Production changes the schedule. The warehouse prepares the shipment. Transport still works from yesterday’s information. Everyone has a system — but nobody sees the same picture.
Digital integration is not about adding more software. It is about making sure accurate information reaches the right person or system at the right moment, so the operation can respond.
01 / The everyday problem
Connected operations start with shared information
Logistics links purchasing, production, storage, transport and delivery. Yet information often sits in separate ERP, WMS, TMS, order-management systems, spreadsheets and customer portals. When those systems do not exchange dependable data, people compensate with calls, emails and manual corrections.
That has familiar consequences: orders are entered twice, stock figures disagree, transport is booked before goods are ready, and customers ask for updates that should already be available.
The original Merlyn article described the transition from internal functional thinking to digital chain integration. That principle still stands in 2026. What has changed is the range of practical tools available — and the importance of managing data quality and responsibilities alongside the technology.
02 / What integration should achieve
Five improvements worth pursuing
Know the actual status
See order, stock, production and transport milestones without chasing several departments or partners.
Reduce re-entry
Reuse validated order and product data instead of copying the same information into multiple systems.
Act on exceptions
Flag a delay, shortage or delivery change while there is still time to do something useful about it.
Work across boundaries
Agree which partner shares which data, when and with whom — including suppliers and logistics providers.
Understand the work
Combine operational events with cost information to reveal rework, extra handling and avoidable delays.
Make data trustworthy
Define ownership, accuracy checks, security and a clear source of truth for each business-critical record.
03 / The connected order
One order. Several systems. One dependable flow.
Follow a normal customer order. Every handover needs both a physical action and a matching information update.
What changes when the order changes?
A customer brings an order forward. A connected process checks inventory and production capacity, updates the commitment where possible and informs the warehouse and carrier. People still make commercial and operational decisions, but they no longer need to reconstruct the facts from disconnected messages.
That principle applies equally to project logistics, offshore operations, intermodal transport and cross-border fulfilment. The precise workflow differs; dependable data handovers remain essential.
04 / Perfect Order
Measure the entire order, not only the delivery
The original article made an important point: a delivery can arrive on time and still be wrong. The product may be incorrect, damaged or invoiced inaccurately. A useful Perfect Order measure looks across the order lifecycle, not only the final transport milestone.
| Measure | Typical question | Where to look |
|---|---|---|
| Order entry accuracy | Was the correct item, quantity and price recorded? | Sales / OMS / ERP |
| Pick accuracy | Did the warehouse pick and pack correctly? | WMS / scan events |
| On-time delivery | Did the order reach the customer as committed? | TMS / delivery confirmation |
| Damage-free delivery | Did the goods arrive in usable condition? | Claims / returns |
| Invoice accuracy | Was the invoice correct the first time? | ERP / finance |
For illustration, suppose five independent stages each perform correctly 98% of the time. The share of orders passing all five stages correctly would be approximately 90.4% (0.98⁵). This is a hypothetical calculation, not a Merlyn client result or an industry benchmark. In real operations the stages may not be independent, so use actual order-level records for your KPI.
Start with a consistent definition, measure failure reasons and fix the recurring causes — for example inaccurate master data, poor stock confirmation or unclear handover responsibilities.
05 / Technology without the theatre
Keep the systems that work. Connect what matters.
Many SMEs do not need to replace their entire software landscape to improve integration. Existing ERP, WMS, TMS and OMS applications may be suitable if they can exchange data reliably and their processes are clear.
EDI
Electronic Data Interchange remains relevant for structured business documents such as orders, despatch advice and invoices, particularly between established trading partners.
APIs
Application programming interfaces allow authorised systems to request or update information, such as inventory availability, shipment status or order details.
Events and integration platforms
Event-based messages can notify other systems when something changes. Integration platforms or middleware help map data, monitor errors and manage interfaces.
Dashboards and alerts
A good dashboard turns reliable events into actions. A bad one simply displays inconsistent figures from several disconnected sources.
An Enterprise Service Bus (ESB), highlighted in the original article, can still be appropriate. It is one architectural option, not a mandatory component for every organisation. The choice depends on system capabilities, transaction volumes, partner needs, maintainability and cost.
06 / Financial visibility
Make the hidden cost of poor data visible
A late update can trigger express transport. An incorrect stock record can cause an unnecessary purchase. A wrong delivery can mean returns, credit notes, extra picking and another shipment. Those costs sit across different departments and often disappear into overhead.
Connecting operational events to finance helps businesses understand their actual cost-to-serve. Activity-Based Costing can be useful here: it links resources and costs to the activities that cause them, instead of allocating everything through broad averages.
Read Merlyn’s updated article on Activity-Based Costing and logistics profitability.
07 / What changed by 2026
Data rights, electronic freight information and realistic AI
European Data Act. The EU Data Act has applied since 12 September 2025. It addresses fair access to and use of certain data, including information generated by connected products and related services. It is not a general requirement for every business to share all of its operational data. The relevance depends on the equipment, data and relationships involved. European Commission: Data Act.
Electronic Freight Transport Information (eFTI). The EU is introducing a framework for electronic freight information. From 9 July 2027, competent authorities must accept qualifying information provided through certified eFTI platforms. In 2026, companies can prepare their data structures and procedures; using eFTI is not generally mandatory for businesses. European Commission: eFTI regulation.
AI and automation. Predictions and exception alerts are only useful when the underlying order, inventory and transport data are timely and reliable. A simpler rule-based alert may be a better first investment than a sophisticated AI project. Merlyn explores this in AI and Machine Learning Are Transforming the Transport Sector.
08 / A practical starting point
How to begin without a major IT programme
Choose one painful process
Start where missing or late information causes a measurable service problem: order changes, stock accuracy, shipment status or invoicing.
Map the handovers
Identify who creates the data, who needs it, which system owns it, how it is exchanged and what happens when it is wrong.
Agree the basic standards
Define order IDs, item data, status codes, timing, access rights and exception handling before connecting interfaces.
Pilot and measure
Connect a manageable part of the flow. Compare manual corrections, errors, lead time and cost-to-serve before expanding.
Questions worth asking your software supplier
- Which standard APIs or EDI formats are available, and what do they cost?
- How are failed messages detected, retried and corrected?
- Who can see sensitive commercial and customer data?
- Can we export our information and change providers without losing control?
- Will planners and warehouse staff get a usable exception workflow — not just another screen?
09 / Related Merlyn perspectives
Where integration matters in practice
The original article linked digital chain integration to several specialist logistics settings. Those connections remain useful. The following links point to the public Merlyn website rather than the protected test environment.
Intermodal Transport Management Suite — sharing schedules and shipment information
Fifth-Party Logistics (5PL) — coordinating connected logistics networks
Optimisation & Visibility for LSP and Shipper — improving shared operational information
Activity-Based Costing — linking operational activities to real costs
Scrum Efficiently and Successfully — making improvement work manageable
Make systems work together — and make work easier.
Is your team spending too much time correcting orders, chasing updates or reconciling different figures? Merlyn Consult can help assess the information flow, define practical requirements and make sensible software and process choices.