CDS Maintenance and Planned Downtime
BY:
Niamh O'Connor
18 May 2023
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Due to scheduled maintenance on the Customs Declaration Service (CDS), the service will be unavailable between 11:59 pm Wednesday, 24th May, to 00:45 am Thursday, 25th May.
Declarations submitted during this timeframe will be processed at the end of the downtime.
Creating, updating, or embarking a goods movement reference (GMR) during this time will be affected. For guidance on GVMS, please refer to the GVMS service availability and issues page.
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During this period, please note that any pre-lodged declarations that will be affected by the changes should be changed/amended prior to the goods arriving. If customs declarations are not corrected prior to arrival, they will be rejected.
Following the CDS update on 26 September 2026 (version 5.3.0), the Customs Declaration Service (CDS) will be unavailable during scheduled maintenance.
Document code 9Y16 is used by importers to claim a contractual waiver. From 30 September 2026, this code will cease to be valid.
