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Public procurement

How does the Q&A round in public tenders work?

Short definition

In the Q&A round suppliers can ask questions about the tender documents until a set deadline. The authority answers them anonymously for all suppliers at once so nobody gains an information advantage. The answers become part of the tender documents.

Almost every public tender sets a deadline for suppliers’ questions. This Q&A round is the only permitted conversation with the authority during the procedure, and many suppliers underestimate it.

Process

The tender states deadline and form, usually in writing via simap or email. The authority collects the questions, answers them anonymously and makes questions and answers available to all suppliers. The answers clarify or change the documents and are binding for bids. Not reading them risks a bid that misses the requirements.

Questions worth asking

Questions on unclear suitability criteria and evidence, on the price scoring method, on volumes and assumptions, on contradictory passages and on contract clauses that pose a risk. Good questions are concrete, reference the passage and propose a clarification where possible.

What questions reveal

Because all suppliers see the answers, a question also reveals something about your own approach. Strategically important ideas belong in the bid, not in the question. Conversely, read the others’ questions: they show what competitors care about.

Deadlines and consequences

After the deadline the authority answers no more questions. Unresolved ambiguities often count against the supplier in a dispute. Reservations about the documents belong in the Q&A round rather than in the bid, where they can lead to exclusion. The second checkpoint of the bid/no-bid decision sensibly follows the Q&A round.

Sources and references
  • Federal Act on Public Procurement (PPA/BöB, SR 172.056.1), principles of equal treatment and transparency

Legal position as of October 2026. Not legal advice for an individual case.

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