Relation, authorisation and sequence errorsRelation & missing element

CDS12096Relation error: Provided Authorisation Type (D.E. 3/39) requires specific document in Additional Documents

HMRC explanation

Authorisation error
When declaring any of the authorisation types CGU, EUS, IPO or TEA in data element 3/39, it is necessary to declare document code C505 (Customs Comprehensive Guarantee) in DE 2/3. It may be necessary to declare C505 together with a waiver status code such as XW.

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