customer sends questionnaire in English or German, does that work too

Language of the questionnaire makes nothing impossible

Yes, a questionnaire in English or German works just fine. The system recognizes questions based on meaning and structure, not on the language in which they are asked. A question like "Does the company have professional liability insurance?" is recognized as the same question as "Heeft de onderneming een aansprakelijkheidsverzekering voor bedrijven?" and receives the answer from the same chain file.

What does matter is whether the question substantively matches something in the file. A German questionnaire asking for "Mitarbeiterzahl" is linked to the number of employees of the undertaking,and a question about "Sitz des Unternehmens" to the registered address. When a question does not match well — due to an unusual phrasing, a compound question, or a concept not present in the file — the system does not propose an answer. That question then remains open for review, just as with a Dutch list. Language thus does not change the recognition of the question itself, but it does affect how certain that recognition is: with non-standard translations of technical terms — for example, a slightly different German term for scope 3 emissions than is customary — the match can be less sharp than with a standard formulation.

Recognition works on content, not on source language

This follows from how the platform matches questions to the chain file: the file itself is language-neutral, with facts registered according to the Trade Register Act 2007, or measures in accordance with Annex A of ISO/IEC 27001. A question in another language is translated to that same underlying category before an answer is proposed. There is no separate rule that sets language as a condition for recognition — the link is made on the basis of what is being asked, not in which language.