Putting your needs at the heart of everything we do

Langdon’s philosophy is simple: always strive to be supportive and approachable. We understand your systems, your authorisations and the commercial pressures you face, and we’re here to help you every step of the way.

Customs never sleeps, and neither does our commitment to keeping your operations running smoothly. Whether it’s a quick question or a complex fix, you’ll always speak to someone who knows your business and can help you get back to what you do best, safe in the knowledge that we’ll always act in your best interests.

Onboarding and Seamless Implementation from day one

Our onboarding process is designed to make transition effortless. From the moment your project begins, our implementation and support teams work side-by-side to configure your systems, migrate data, and train your users – so you’re ready to go live with confidence.

1. Kick-off and discovery

Map and document your processes, review data, confirm authorisations, on-site warehouse visit.

2. System setup and configuration

Connect to your WMS/ERP, map the data, set up test and live environments.

3. Test environment review

User testing, roles/controls set, hands-on training.

4. Go-live support

On-site go live support, cutover help, daily checks, fast issue resolution.

5. Post-launch review

One month of free Hypercare support provided, then over to Langdon service desk.

6. Quarterly reviews

Compliance health checks, KPI reporting with account manager.

Training and Enablement that empower your team.

We don’t believe in one-size-fits-all. Our training programmes are tailored to your business, ensuring your teams understand every process, authorisation and compliance requirement relevant to them.

Delivered on-site or remotely, our sessions combine practical demos with real-world guidance – helping your people become confident, capable system users.

Examples of training modules:

  • Introduction to Langdon DMS
  • Managing bonded stock and declarations
  • Maintaining audit-ready data
  • Authorisation and compliance best practice

Book a Training Session

After-Sales Support

Our relationship doesn’t end when your system goes live. We provide proactive, ongoing support – from data validation and updates to quarterly performance reviews and compliance health checks.

Each client is assigned a dedicated contact who knows your setup, monitors performance, and ensures your system continues to deliver against your goals.

  • Regular system updates and improvements
  • Proactive monitoring and error resolution
  • Quarterly compliance and optimisation reviews
  • Dedicated client support contact
85%

NPS score

25%

of clients have been with Langdon for 20 years

99.8%

of tickets resolved on time

UK and Ireland customs FAQs: quick answers to common questions

Our UK&I customs FAQs library is designed to help you find quick solutions anytime and covers the most common questions about Langdon’s systems and HMRC customs and excise requirements, from authorisations to declarations.

There are two simple routes to request access, depending on availability within your organisation:

1. Via Your Super User (Preferred Route)


Your organisation’s nominated Super Users can create new users directly within the system.
They can set up the account and generate the initial password, enabling immediate access.

2. Via the Langdon Service Desk


If your Super User is unavailable, you can request access by:

Our team will create the account and confirm access details once completed.

If a declaration is rejected, the issue can be reviewed within the Errors tab of the declaration record. This section provides:

  • The CDS rejection code
  • A DMS plain-language explanation identifying the specific CDS data element causing the error

Once identified, amend the relevant data field and resubmit the declaration.

If you require further guidance, our Service Desk team is on hand to support you at servicedesk@langdoncustoms.com.

Yes. Langdon DMS is fully integration-agnostic, meaning it can connect with any WMS or ERP platform used within your business.

We provide a comprehensive interface specification available in CSV, XML or ASCII.dat formats, and can also support dedicated API integrations where preferred.

To ensure a seamless implementation, your dedicated Implementation Manager will lead an interface scoping session with you and your IT partners. This ensures we fully understand your system landscape, data structure and integration objectives before development begins.

Our team will then guide you through the integration process end-to-end, ensuring secure, accurate and reliable data flow across your systems.

If a customs authorisation has expired or been revoked, CDS will return a rejection message confirming the affected authorisation and preventing the declaration from proceeding.

In this instance, you can contact customsauthorisations@hmrc.gov.uk, who will explain the reason for removal and advise on next steps.

When enrolled in CDS, you are also issued a dedicated CDS token. The Langdon application continuously monitors token validity and provides advance notification when renewal is required, alongside clear guidance on how to complete the process.

If you need support reviewing an authorisation issue or interpreting a CDS rejection, our Service Desk team is always available to assist.

Need help right now? We’re here for you.

You can reach out to our team directly by phone or email. Our experienced specialists are ready to help you and will respond to all support enquiries within 24 business hours.

Phone:  +44 (0)161 513 3334