What causes the BR-CL-24 error?

BR-CL-24 occurs when an attachment's MIME type code is not valid. Valid codes include application/pdf, image/png, image/jpeg, text/csv, and other IANA registered media types.

How do I fix BR-CL-24?

Update the mimeCode attribute in the EmbeddedDocumentBinaryObject element to use a valid IANA media type that matches your file format.

Is BR-CL-24 a critical error?

Yes, BR-CL-24 is a code list violation that will cause invoice rejection. Attachments must have valid MIME types for proper processing.

Can BR-CL-24 be automatically fixed?

In some cases. Invoice Navigator can detect common file extensions and suggest the correct MIME type, but manual verification is recommended for unusual file formats.

Error codes · EN 16931

BR-CL-24Fixable here

For Mime code in attribute use MIMEMediaType (IANA media types).

This is the rejection, word for word: „[BR-CL-24] An attached document has an invalid MIME type code. MIME types must follow the standard format (type/subtype), such as application/pdf for PDF files, image/png for PNG images, or text/csv for CSV files.“

XPath: cac:AdditionalDocumentReference/cac:Attachment/cbc:EmbeddedDocumentBinaryObject/@mimeCode — EN16931 rule BR-CL-24. Must be valid IANA media type format.

What to have readyThe missing value from your purchase order, contract or bookkeeping.

What we doInvoice Navigator automatically fixes this issue by correcting the `@mimeCode` element in your Invoice.

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:EmbeddedDocumentBinaryObject>
  <@mimeCode>INVALID_CODE</@mimeCode>
</cbc:EmbeddedDocumentBinaryObject>

After

<cbc:EmbeddedDocumentBinaryObject>
  <@mimeCode>VALID_CODE</@mimeCode>
</cbc:EmbeddedDocumentBinaryObject>

What the finding looks likeExample

FindingValue missing · BR-CL-24

Locationcac:AdditionalDocumentReference/cac:Attachment/cbc:EmbeddedDocumentBinaryObject/@mimeCode

From youThe missing value

ThenPassed

ProofSHA-256 and /verify link after the check

Often appears together with

BR-CL-07Object identifier scheme MUST be from UNTDID 1153