Getting Started (3)
Everything you need to get started with iCustoms.
iCDS (2)
Support and guidance for creating, submitting, and managing UK customs declarations through the Customs Declaration Service (CDS).
iDP (1)
Upload your customs documents and let iDP do the work. iDP automatically extracts the relevant data from uploaded documents, reducing manual data entry and making the customs declaration process faster, easier, and more efficient.
iCustoms Release Center (1)
The iCustoms Release Center is your one-stop hub for all updates and information related to our system enhancements and releases. Here, you will find detailed release plans, comprehensive release notes, and essential validation articles that ensure you are fully informed and prepared to make the most out of every new system update.
CDS Error Codes (180)
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CDS 10001 – Mandatory Data Element has not been provided
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CDS 10002 – Data Element is not allowed
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CDS 10003 – Number of Occurrences exceeds what is allowed for the Data Element
AES Error Codes (282)
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AES G 0016 – This error occurs when both the declared and actual customs offices of exit are marked for notification, but the system allows only one to be notified, preventing duplication or conflicting notifications in the export process.
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AES B 1803 – During the transitional period (Decisive Date ≤ TPendDate), the condition C0211 for the CountryOfRoutingOfConsignment field is disabled, making the field optional ("O").
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AES B 1807 – In the transitional period, condition C0392 for the LocationOfGoods field is disabled, and the field becomes optional ("O").
ICS2 Error Codes (42)
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ICS2 12 – Only value '2 - Sub-house level filing' can be used.
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ICS2 12 – REPRESENTATIVE/Identification number' cannot be the same as 'DECLARANT/Identification number'.
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ICS2 12 – IF 'CONSIGNMENT (HOUSE LEVEL)/ADDITIONAL INFORMATION/Code' is '10600',THEN this class is M,ELSE it is O.
AIS Error Codes (238)
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AIS BR 0010 – This error occurs when the Method of Payment field in Data Element 4/8 is either missing or contains an invalid value not listed in the approved Tax Payment Method code list from the ROS system.
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AIS BR 0020 – This generic error indicates that a value entered in a field requiring a specific code list (such as procedure codes, document types, or country codes) does not match any allowed entry in that list.
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AIS BR 0202 – The 'N9000 - Supplementary Waiver' code in Data Element 2/2 cannot be used if the declaration results in any customs duty or VAT liability, as it is intended for waiver scenarios without financial obligations.
S&S Error Codes (41)
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S&S 4065 – The [Message sender] (MesSenMES3) must follow the exact pattern “[A-Z]{2}[^ ]{1,15}/[0-9]{10}” (2 capital letters + 1–15 characters + slash + exactly 10 digits).
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S&S 8102 – Each goods item must have a unique [Item number] starting from 1 and increasing by 1 (1, 2, 3, …).
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S&S 8103 – [Gross mass] (GroMasGDS46) is required on every goods item unless Specific circumstance indicator = ‘E’ or Total gross mass is provided at header level.