Relation, authorisation and sequence errorsRelation & missing element

CDS12099Relation error: Combination of elements that make up the Goods Location code (5/23) is invalid

HMRC explanation

Goods location code not recognised

Check the codes listed in Appendix 16 and in the supplements to Tariff, where new goods location codes may be listed.

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