A meeting with the client after the conclusion of the procurement (usually after contract award) to receive feedback on your proposal. (Should you bother to go? Yes. Always. Win or lose.)
Client rules for these debriefs are understandably designed to prevent the release of any information that violates the confidentiality owed to other bidders, or that would enable a challenge to the award based on a flawed evaluation process. Usually held in the client’s offices, and often in the presence of the Fairness Monitor or other client observers or witnesses who are independent of the procurement process for this proposal.