How do I fix DE-R-027?

Invalid phone number format. The seller contact telephone number (BT-42) must contain at least 3 digits to be valid. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.

Is DE-R-027 a critical error?

DE-R-027 is a warning that may not always cause rejection, but it indicates a potential compliance issue that should be addressed.

Can DE-R-027 be automatically fixed?

DE-R-027 requires manual correction. Review the fix steps above for guidance.

Error codes · PEPPOL_BIS · Germany

DE-R-027In your invoicing software

Invalid phone number format. The seller contact telephone number (BT-42) must contain at least 3 digits to be valid.

This is the rejection, word for word: „[DE-R-027] Invalid phone number format. The seller contact telephone number (BT-42) must contain at least 3 digits to be valid.“

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

What we doInvalid phone number format. The seller contact telephone number (BT-42) must contain at least 3 digits to be valid.

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.

What the finding looks likeExample

FindingStructure invalid · DE-R-027

Location//cac:AccountingSupplierParty/cac:Party/cac:Contact/cbc:Telephone

From youA re-exported file

ThenRe-export

ProofSHA-256 and /verify link after the check