What does cvc-complex-type.2.1 actually mean?

An element whose XSD content type is declared empty has non-empty content in your document. The XSD parser enforces the empty contract and rejects the element.

How is 2.1 different from 2.3 and 2.4?

2.1: element should be empty, has content. 2.3: element-only type has text. 2.4.a/b/d: specific element-order or presence violations.

Is this error auto-fixable?

Whitespace-only or comment-only content is safely stripped automatically. When real data has been written into the empty element the fix requires a mapping change and Invoice Navigator escalates it as blocked.

Why does my file pass locally but fail at the Peppol Access Point?

Local validators often tolerate whitespace inside empty-type elements. Peppol Access Points run strict Xerces validation against the canonical XSD, so lenient local passes can still fail 2.1 at the AP.

Does this error apply to UBL, CII, and XRechnung equally?

Yes. All three rely on the same XSD parser behaviour. The set of empty-type elements differs, but the validation error is schema-level and identical across formats.

Error codes · xsd

cvc-complex-type.2.1In your invoicing software

Element declared as empty contains character or child content

This is the rejection, word for word: „[cvc-complex-type.2.1] cvc-complex-type.2.1 is an XSD schema-validation error raised by Xerces-based parsers when an element whose content type is declared as empty contains character data or child elements. The canonical message reads: "Element X must have no character or element information item [children], because the type's content type is empty."“

What to have readyNothing. The file has to be re-exported from your invoicing software; we check it again afterwards.

What we doRemove text, whitespace, and child nodes from the offending element, or route the data to the correct leaf if a real value was written into the wrong element.

Choose the rejected invoiceor drop it here

XRechnung XML or ZUGFeRD PDF. Checking is free · corrected file €1.90 · the first every 30 days is free · no sign-up.

If you enter it yourself in your invoicing software

Before

<cbc:AccountingCost>  </cbc:AccountingCost>

After

<cbc:AccountingCost>COST-CTR-4100</cbc:AccountingCost>

What the finding looks likeExample

FindingStructure invalid · cvc-complex-type.2.1

From youA re-exported file

ThenRe-export

ProofSHA-256 and /verify link after the check