Relation, authorisation and sequence errorsAuthorisation

CDS12125DAN Error: Account number is not recognised; or Account is suspended or revoked; or Parties declared on the declaration do not have authority to use account number provided

HMRC explanation

DAN error

The deferment account number or Guarantee reference Number you have provided - is not recognised or - the account may be suspended/revoked or - Parties declared on the declaration do not have authority to use account number provided.

Check the CDS financial dashboard/contact HMRC deferment department.

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