How is a bidder informed that its bid was rejected?
An unsuccessful bidder is informed that its bid was rejected by the contracting authority, once the bid evaluation is complete. Contracting authorities are generally required to notify affected bidders of the rejection of their application or bid, under the applicable procurement rules. This notification opens the phase in which the bidder can understand why it was rejected, and, if it considers this justified, react within the applicable deadlines.
A rejection notice is not a silent dead end: it opens a right to information.
What reasons for rejection can a bidder obtain?
The reasons for rejection a bidder can obtain cover why its bid was not selected and the characteristics of the winning bid. Rejection may relate to the admissibility of the bid or to its score. A bid can be excluded as non-compliant, unacceptable, or inappropriate, or simply score lower against the published criteria. Knowing which category the reason falls into changes how you read it: a rejection for non-compliance points to a missed document or requirement, a rejection on scoring points to the compared quality of the bids.
Distinguishing an admissibility rejection from a scoring rejection is the first thing to do: the two do not improve in the same way.
How do you request the detailed reasons for rejection?
Requesting the detailed reasons for rejection is done through a written request to the contracting authority after notification. The table below distinguishes what the rejection information provides depending on the level requested.
| Level of information | What the bidder obtains | What it is used for |
|---|---|---|
| Rejection notice | the fact that the bid was rejected | the start of the response deadlines |
| Reasons for rejection | the reasons the bid was rejected | the main area to improve |
| Characteristics of the winning bid | the strengths and score of the winning bid | measuring the gap to close |
Requesting reasons is a right, not a favor: it is exercised within the applicable form and deadlines, and the contracting authority responds within the framework set by the rules that apply to it. This page covers the reasons for your own rejection and what to do with them; the winner's identity, the detail of the winning bid, and publication of the outcome through an award notice are covered in how to find out who won a public contract and on what terms.
What are the reasons for rejection useful for in the next response?
The reasons for rejection are useful for correcting the next response exactly where it actually fell short. An admissibility reason leads you to tighten the completeness check and the compliance matrix; a scoring reason leads you to revisit the evidence provided on the heaviest criterion. This is more reliable material than intuition, because it comes from the evaluator itself.
Ignoring the reasons means replaying the same bid on the next contract; analyzing them turns a loss into improvement data.
When is the information enough, and when should you go further?
To improve, the rejection notice and its reasons are usually enough: they tell you where to focus effort. Going further, up to challenging the rejection, is only justified if the bidder believes the procedure or the scoring did not follow the announced rules. The line is the nature of the grievance: a quality gap is something to improve, a procedural irregularity is something to challenge, and a challenge falls under a separate legal framework that should be reviewed with counsel.
On the Optivalue.ai platform, which publishes this site, the evidence chain rests on 5 layers, including 7 anti-hallucination checks, applied before submission, which reduces the risk of rejection for an unaddressed requirement.
Mistakes that cost you the reasons for rejection
- Not asking for the reasons: without a written request, the bidder often gets no more than the bare rejection notice.
- Confusing non-compliance with a low score: the two reasons improve differently; know which one applies.
- Missing the deadlines: the request for reasons and any further steps must be exercised within set deadlines.
- Keeping no record: without a trace of the reasons, the analysis of the loss does not benefit the next response.
- Treating rejection as a final verdict on the company: a specific reason targets a bid, not the company's capability.
Frequently asked questions
Must the contracting authority justify the rejection of a bid?
The contracting authority notifies rejection to unsuccessful bidders and, on request, communicates the reasons, within the framework set by the applicable procurement rules. The bidder should request these reasons in writing.
Can you find out the winner's name and bid?
An unsuccessful bidder can obtain the characteristics and advantages of the winning bid, subject to the protection of trade secrets, under each market's rules. This information measures the gap with the winning bid.
How long do you have to request the reasons?
The request and any further steps fall within deadlines set by the applicable rules, to be checked for each contract. It is best to act without delay after notification.
Do these rules apply outside France?
The right to information for unsuccessful bidders varies by market. Check the law of the relevant jurisdiction.
Analyze a real rejection on your own documents
Bring a real set of tender documents and your rejected bid. You will see requirement-extraction coverage, sources cited on every page, and a gap analysis of your response, not a prepared demo.
Written by the compliance and presales team at Optivalue.ai. Last reviewed: 5 September 2026. This page does not constitute legal advice.
Sources cited
- Public procurement rules on the notification of unsuccessful bidders and the definition of non-compliant, unacceptable, and inappropriate bids; the applicable rule in each market should be verified.