Relation, authorisation and sequence errorsRelation & missing element

CDS12086Relation error: Either Carrier Name (DE 3/31) or Carrier Identification Number (DE 3/32) must be supplied, but not both

HMRC explanation

Carrier details

You have provided both Carrier name and Carrier EORI. Only declare either the EORI or the full name and address of carrier not both. EORI should be declared when known.

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