Relation, authorisation and sequence errorsRelation & missing element

CDS12111Relation error: The provided tax amount (DE 4/6 or DE 4/7) must always be declared with currency code GBP

HMRC explanation

Relation error

You have declared the tax amount (data element 4/6 or 4/7) in the incorrect currency. Tax amounts should always be declared with the sterling GBP currency code.

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

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