# AF-0035

Source: https://xmlvalid.com/rules/AF-0035

> Der angegebene Wert ist ungültig. Es muss mindestens ein Zeichen enthalten sein (…/Address: Name, Street, Town, ZIP).

- Level: error
- Rule sets: e-Rechnung.gv.at checks (ebInterface) Fehlerliste, October 2026
- Context: `/*:Invoice/*:Biller | /*:Invoice/*:InvoiceRecipient`
- Test: `not(*:Address) or (normalize-space(*:Address/*:Name) != '' and normalize-space(*:Address/*:Town) != '' and normalize-space(*:Address/*:ZIP) != '' and normalize-space(string-join(*:Address/(*:Street | *:POBox), '')) != '')`

In English: A field must contain at least one character: here the name, street, town or postcode of an address.

Validate a document against these rules: https://xmlvalid.com/validate