Relation, authorisation and sequence errorsRelation & missing element

CDS12136Relation Error: Provided Additional Procedure Code (DE 1/11) necessitates indirect representation (DE 3/21) for the following declaration types: C F Y J K Z

HMRC explanation

Relation error
The additional procedure code declared requires this declaration to have indirect representation (data element 3/21).
The representative status declared in data element 3/21 would show Indirect, code ‘3’. The representative status declared in data element 3/21 indicates the relationship between the representative and the importer, not the sub-agent and any other party.

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