Relation, authorisation and sequence errorsRelation & missing element

CDS12090Relation error: Carrier Name (DE 3/31) or Carrier Identification Number (DE 3/32) must be supplied for the 17X Additional Procedure Code at either header or item level

HMRC explanation

Carrier EORI
When declaring additional procedure Code 17X on a C21e clearance request, the carrier name and address or the carrier EORI must be declared at header level.

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