We have received notification that Delta G is experiencing an outage. CAS has submitted your declaration, but Customs is unable to process it at the moment. You may continue your goods flow by enabling Emergency procedure declarations, Queue declarations, or both in CAS. Step-by-step information can be found in our Knowledge Base.
If you have further questions, please contact French Customs authorities directly.
• Motive An incident was noted on the Customs Declaration - Traditional Freight (DELTA G) online procedure. Our teams are currently working on its analysis and processing.
• Backup procedure The rescue procedure is authorized on 17/10/2025 from 18:00.
• Instructions We ask you to apply the instructions provided in the sheet relating to the rescue procedure. In addition, for ECS, export procedures must be carried out by stamping copy 3 of the SAD on which the mention "fallback procedure" appears. This visa is equivalent to a certification of the exit of the goods from the customs territory of the EU. When operations are resumed in Delt@, the integration code 50000 will not give rise to an adjustment of the securities in ECS.
• BREXIT scheme If your trade concerns a flow of goods from or to the United Kingdom and traced in the BREXIT (Smart Border) IS, please refer to the fact sheet relating to the specific Brexit rescue procedure.
Oct 19, 2025 - 06:42 CEST
The Customs4trade Status Page is your central hub for monitoring the health and performance of our customs management platform CAS and the systems it connects to.
Some of the customs systems allow for direct notifications as well. For more details read our Knowledge Base article: https://help.customs4trade.com/servicedesk/customer/portal/54/article/95582056939626
We have received the following information from Customs Authorities concerning a scheduled Release. Please note that there is no foreseen outage for this. CDS should be operational.
If you require assistance, please contact our Customer Support team via the ticket portal.
"There will be a minor CDS Release, version 4.9.0.1, on the 23rd October 2025.
This release includes adding electronic document functionality to several Document Codes, and some changes to the use of Document Status Codes ‘XW’ and ‘XX, along with some changes relating to NI movements.
Accompanying this guidance is a reissue of CHED guidance sent out last week, as this relates to items 5 and 6 of this release."
More information can be found here: cds release 4901. Posted on
Oct 13, 2025 - 10:28 CEST
We have received the following information from Customs Authorities concerning a scheduled maintenance.
If you require assistance, please contact our Customer Support team via the ticket portal.
"Revenue has been informed that necessary maintenance and upgrading of the Government Networks infrastructure is scheduled to take place between 23:59 hrs on Friday 24th October 2025 and 02:00 hrs on Saturday 25th October 2025.
The following systems and declarations may also be impacted:
AIS - Automated Import System - Import and Temporary Storage Declarations, Presentation Notification, Electronic Transport Documents AES - Automated Export System - Export Declarations and Exit Summary Declarations NCTS - New Customs Transit System - Outbound Transit Declarations and Notification of Arrival of Inbound Transits EDE - Excise Duty Entry - Declarations for excisable products acquired from other EU countries FVMS/RoRo - PBN - Pre-boarding Notification" Posted on
Oct 17, 2025 - 13:49 CEST
Past Incidents
Oct 19, 2025
Unresolved incident: Customs system outage Delta G.
Resolved -
This incident has been resolved.
Oct 16, 11:30 CEST
Identified -
Dear Customer
We have noticed inconsistencies with the ingested shipments in CAS Production for Belgium. We are currently investigating this and will keep you posted on the developments.
We apologize for any inconvenience.
Oct 16, 11:28 CEST
Completed -
The scheduled maintenance has been completed.
Oct 15, 17:15 CEST
In progress -
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 15, 12:30 CEST
Scheduled -
Dear Customer
We have received the following information from Customs Authorities concerning a scheduled maintenance. Please consult our Knowledge Base article on How to Use the Business Continuity Procedure (BCP).
If you require assistance, please contact our Customer Support team via the ticket portal.
"We would like to inform you that a technical operation affecting the online service Customs Declaration – Traditional Freight (DELTA G) is scheduled for 15 October 2025, from 12:30 p.m. to 5:00 p.m., in the production environment.
For declarations under regimes 42/63, if DELTA G blocks the process during VAT identification control, you should enter the code F4000 in the customs declaration."
Oct 10, 10:56 CEST
Resolved -
This incident has been resolved.
Oct 14, 14:42 CEST
Identified -
Dear customer,
The availability of the process Import to EU, Export from EU and Storage (DMS) is under investigation from Tuesday 14-10-2025 12:48.Signals about a possible disruption have been received.
Oct 14, 12:57 CEST
Resolved -
This incident has been resolved.
Oct 13, 11:40 CEST
Monitoring -
Dear Customer
We have received the following information from Customs Authorities concerning a scheduled maintenance. Please consult our Knowledge Base article on How to Use the Business Continuity Procedure (BCP).
If you require assistance, please contact our Customer Support team via the ticket portal.
Message from customs:
Hello
We inform you that the delivery of the Customs Transit Declaration (DELTA T) tele-procedure, scheduled for this 13/10/2025, from 10:00 to 10:30, on the PRODUCTION environment is extended.
Therefore, the Customs Transit Declaration (DELTA T) tele-procedure, in #GENERIQUE_MODE_LIBELLE#, remains unavailable this 13/10/2025, since 10:00 am.
The fallback procedure remains authorized on 13/10/2025, from 10:00 until the end of the delivery. • BREXIT scheme
If your trade concerns a flow of goods from or to the United Kingdom and traced in the BREXIT (Smart Border) IS, please refer to the fact sheet relating to the specific Brexit rescue procedure.
We apologize for any inconvenience caused
Oct 13, 11:06 CEST
Completed -
The scheduled maintenance has been completed.
Oct 13, 10:45 CEST
In progress -
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 13, 10:00 CEST
Scheduled -
Dear Customer
We have received the following information from Customs Authorities concerning a scheduled maintenance. Please consult our Knowledge Base article on How to Use the Business Continuity Procedure (BCP).
If you require assistance, please contact our Customer Support team via the ticket portal.
Please be advised that a deployment of version 5.6.4 for the Customs Transit Declaration (DELTA T) e-procedure is scheduled for 13/10/2025, from 10:00 to 10:30, in the PRODUCTION environment.
Consequently, the Customs Transit Declaration (DELTA T) e-procedure, in DTI/EDI mode, will be unavailable on 13/10/2025, starting at 10:00, for an estimated duration of 30 minutes.
The contingency procedure is authorized on 13/10/2025, starting at 10:00 until the deployment is complete.
We request that you follow the instructions outlined in the contingency procedure document, which can be consulted in the attachment.
• BREXIT System If your exchanges involve goods flows to or from the United Kingdom and are tracked in the BREXIT system (smart border), please refer to the specific Brexit contingency procedure document.
If the system does not restart as planned at 10:30 on 13/10/2025, the contingency procedure will remain authorized.
Completed -
The scheduled maintenance has been completed.
Oct 12, 16:20 CEST
In progress -
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 12, 08:00 CEST
Scheduled -
Dear Customer
We have received the following information from Customs Authorities concerning a scheduled maintenance. Please consult our Knowledge Base article on How to Use the Business Continuity Procedure (BCP).
If you require assistance, please contact our Customer Support team via the ticket portal.
Maintenance of EU Import, EU Export and Storage (DMS), EU Import, EU Export and Storage (AGS) From Sunday 12-10-2025 08:00 until (estimated end time) Sunday 12-10-2025 16:00 (CET), necessary maintenance will be carried out on Government systems.
As a result, the following main customs process(es) are not available: • Import into the EU, Export from the EU and Storage (DMS) • Import into the EU, Export from the EU and Storage (AGS)
Planned maintenance: You can deliver messages as usual; these are not processed during the maintenance but buffered. After the maintenance has been completed, the messages will still be processed, and any return messages will follow.
You can use the emergency procedure. We advise you to only apply the emergency procedure if you believe that the logistics process requires the processing of a declaration. • To the emergency procedure
You will be informed of the availability of the respective processes.
Oct 5, 21:29 CEST
Resolved -
This incident has been resolved.
Oct 9, 19:24 CEST
Update -
The services are stabilizing, and the number of interruptions encountered should now be greatly reduced.
Oct 9, 14:45 CEST
Identified -
Dear Customer
We regret to inform you that CAS is experiencing an unplanned outage due to service interruptions on Microsoft’s side. We are in contact with the service provider to expedite the reestablishment as soon as possible..
We apologize for any inconvenience.
Oct 9, 10:40 CEST
Resolved -
This incident has been resolved.
Oct 9, 10:37 CEST
Identified -
Dear Customer,
We have received notification that DELTA-G is experiencing malfunctions in processing declarations. We assure you that your declaration has been submitted by CAS and will move forward as soon as Customs authorities resolve the issue.
"Malfunctions have been observed on the GUN connection between DELTA-G and SIGALE since 12:30 on October 8, 2025. Details of the malfunctions encountered: The GUN connection between DELTA-G and the SIGALE database is experiencing a malfunction. This is affecting the operation of the GUN connection between DELTA-G and the SIGALE database. Consequently, operators who declare exports in DELTA-G accompanied by a dematerialized war material export license (document codes 2424 or 2425) may encounter the error message "T001 technical error." In such a case, while waiting for the connection to be restored, operators are encouraged to postpone the relevant customs clearance operations until the end of the unavailability period. Operators and customs services will be informed when the connection is restored. We apologize for any inconvenience. A message will inform you when these issues resolve. If these issues persist, you will receive an update regarding the progress of the technical teams' work. We apologize for the inconvenience."
If you have any questions, please contact French Customs authorities directly.
Oct 9, 07:07 CEST
Resolved -
This incident has been resolved.
Oct 9, 08:38 CEST
Investigating -
Dear Customer,
We have received notification that Delta-T is experiencing an outage. CAS has submitted your declaration, but Customs is unable to process it at the moment. You may continue your goods flow by enabling Emergency procedure declarations, Queue declarations, or both in CAS. Step-by-step information can be found in our Knowledge Base.
If you have further questions, please contact French Customs authorities directly.
Oct 8, 08:52 CEST