Planned Maintenance

The list below details any planned disruption to services to the best of our knowledge. Disruption to any of these can impact the performance of Sequoia.

This information can change at very short notice. Unless otherwise specified, all times are local.

Last change to the information on this page: Friday 12 Sep 2025 10:49

Service Start time End time Details
ASM Online Services
CCS-UK
CDS Live Service
27/09/2025 20:30 28/09/2025 04:00 Planned outage on to
See message from CDS Live Service

Due to scheduled maintenance on the Customs Declaration Service (CDS), the CDS service will be unavailable to all users from 9:30 pm on Saturday 27th September 2025 until 5:00 am on Sunday 28th September 2025

Declarations submitted during this time will be processed when the service becomes available.

Creating, updating, or embarking a goods movement reference (GMR) during this time might be affected.

Only goods with pre-lodged declarations attached to a GMR will be allowed to move using Goods Vehicle Movement Service (GVMS).


For import movements using GVMS, you should check the declaration status and arrive where needed https://www.gov.uk/guidance/manually-arrive-your-goods-in-the-uk.

If moving consignments containing controlled goods with pre-lodged declarations, read the https://www.gov.uk/guidance/list-of-goods-imported-into-great-britain-from-the-eu-that-are-controlled and attend port inspection facilities or inland border facilities for goods to be inspected and released.

Exports should have Permission to Progress (P2P) before travelling.

We apologise for any inconvenience this may cause.
CDS Test Service (TDR)
CNS Compass
20/09/2025 21:00 21/09/2025 02:00 Planned outage on to
See message from CNS

Dear Customer,

CNS will be performing essential updates to our core infrastructure.

This upgrade is of critical importance to our services, ensuring that we can continue to provide our customers with a secure platform for their operations. This work will require a full outage of all CNS services for 4 hours, with additional rollback contingency as noted below.


The work will be carried-out within the following window:

Saturday 20th September 22:00hrs until Sunday 21st September 03:00hrs

This window includes 1 hour rollback contingency. Work is expected to be complete by 02:00hrs


During this window, the following impacts will be experienced:

- Compass - unavailable

- Air Courier - unavailable

- All CNS web services and portals - unavailable

- VBS at DP World Southampton and London Gateway will not receive updates

- All messaging (TOS, EDI, CDS) will be stopped, queued, and processed after the restart

     
We thank you for your patience while we carry out this work.


Kind regards,

The CNS Team
MCP Destin8
NCTS/CTC
Pentant