Relation, authorisation and sequence errorsDomain & value

CDS12157Invalid EORI - This Party must have a permanent business establishment in Northern Ireland or the European Union

HMRC explanation

A relevant party on the declaration does not have the status of 'established in the Union', for the purposes of an NI 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.

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