Other errorsOther
CDS49999Other errors
HMRC explanation
What to check across the Other errors
A general code for errors outside the other families. Read HMRC's explanation for the specific code and the other codes returned with it before changing anything.
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