Relation, authorisation and sequence errorsRelation & missing element

CDS12075Relation error: Data Element 2 must not be supplied with this value in Data Element 1

HMRC explanation

Relation error

If one of the fields is completed the other should not have a value and should therefore be removed. For example, a document code and document status have been entered but the status is not required for this code. This can also indicate that a data element has been declared but is not permitted on this type of declaration.

Source: HMRC, Customs Declaration Service error codes, Open Government Licence v3.0. GOV.UK publication · Licence

What to check across the Relation, authorisation and sequence errors

Two elements, or a value and a rule, disagree. Read both elements together: completing one element with a particular code often requires another value, and the fault is frequently in the element you did not change. The family also covers parties and authorisations that are not recognised, references that must be unique, and messages sent out of sequence.

A declaration that clears CDS can still be wrong

The free eligibility checker confirms your import activity and whether a free post-clearance audit applies. No data upload, no commitment.

Source: HMRC, Customs Declaration Service error codes, Open Government Licence v3.0. GOV.UK publication · Licence