CDS10001Obligation error: Mandatory Data Element has not been provided
A required data element is missing, or required information within it is missing or incomplete.
What to check for CDS10001
- The data element named in the error is completed in full.
- Composite elements carry every part HMRC expects; HMRC's example is a party name and address, which needs name, street and number, country and postcode.
What to check across the Obligation, format and value errors
A single data element has failed: it is missing or incomplete, not allowed on this declaration, repeated more often than permitted, in the wrong format, or carries a value that is not recognised. Check the element named in the error is completed in full, in the expected format, and only where the declaration type allows it. A negative item customs value points back to the valuation data on that item.
What does CDS10001 mean?
CDS10001 is an obligation error: a required data element has not been provided, or required information within it is missing or incomplete. HMRC's example is a party name and address, which needs the name, street and number, country and postcode. Check the element named in the error is complete.
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