Relation, authorisation and sequence errorsAuthorisation

CDS12006License Error: License has expired; or License ID cannot be recognised; or License ID does not belong to the party on the declaration; or License declared has insufficient balance remaining; or License does not apply to the goods or country declared

HMRC explanation

Licence has expired, not recognised, or does not match

You declared a licence number that is failing validation for one of these reasons:

Expiry date is in the past Licence ID not recognised Licence DUCR not matching declaration DUCR Licence ID does not match EORI declared Licence declared has insufficient balance remaining Licence does not match country of origin specified Licence does not permit quantity declared

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.

A declaration that clears CDS can still be wrong

The free eligibility checker confirms your import activity and whether a free post-clearance audit applies. No data upload, no commitment.

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