OCDS Tender Stage

The tender stage is typically the first point at which a public procurement becomes visible to the market. In the Open Contracting Data Standard (OCDS), the tender stage captures all information published from the moment an opportunity is announced through to the closing of the bid window. It is the stage most directly relevant to suppliers actively searching for contracts to bid on.

What is the OCDS Tender Stage?

A tender-stage release documents the formal announcement of a procurement opportunity. The core fields published at this stage include:

• Tender identifier and title.
• Contracting authority details (name, address, contact information).
• Description of the goods, services, or works required.
• Estimated contract value and currency.
• Procurement procedure type (open, restricted, competitive dialogue, negotiated, and so on).
• Submission deadline and the address or portal for bid submission.
• Eligibility and selection criteria.
• Award criteria and their relative weightings.
• Links to tender documents and technical specifications.

If the buyer amends any of these details after initial publication, such as extending the deadline or revising the estimated value, a "tenderUpdate" or "tenderAmendment" release is issued. This creates a transparent record of how the procurement evolved during the open period. Downstream systems that consume OCDS data can detect and flag amendments, ensuring that suppliers who discovered the opportunity early are alerted to any changes.

Under Directive 2014/24/EU, contract notices above EU thresholds must be published in the Official Journal of the European Union (OJEU) via TED (Tenders Electronic Daily). TED publishes OCDS-compatible data covering these notices. For below-threshold contracts, member states set their own publication rules, so coverage in OCDS tender-stage data varies by country and buyer.

Why the OCDS tender stage matters for bidders

The tender stage is where opportunity discovery happens. Structured OCDS data at this stage makes it possible for platforms to index opportunities by CPV code, country, buyer, value range, procedure type, and deadline, turning what would otherwise be hundreds of separate portal searches into a single filtered query. The quality of tender-stage data directly determines how easily suppliers can find relevant opportunities.

Well-published tender-stage releases also enable bidders to extract award criteria, selection criteria, and document links programmatically, rather than manually downloading and reading procurement portals one by one. When a publisher includes rich, machine-readable criteria data in its tender releases, bid preparation becomes significantly more efficient.

Example

The Czech government's procurement portal publishes an OCDS tender-stage release for an IT infrastructure contract. The release includes the estimated value (CZK 45 million), the CPV code for computer hardware, the submission deadline, a link to the e-tender portal, and the award criteria split (60% quality, 40% price). A technology supplier monitoring Czech public procurement in its category sees the opportunity within hours of publication, downloads the tender documents via the link in the release, and begins bid qualification.

Frequently Asked Questions

Does every contract notice become an OCDS tender-stage release?

In principle, yes, for publishers that have adopted OCDS. In practice, publication lag and data quality issues mean that some notices appear in OCDS feeds later than in the buyer's own portal, and some fields may be incomplete. Platforms aggregating OCDS data typically complement it with direct portal scraping to ensure coverage.

Can I tell from OCDS data whether a tender has been cancelled?

Yes. A "tenderCancellation" release tag indicates that the procurement has been withdrawn. This is distinct from a deadline extension (tenderUpdate) or a scope change (tenderAmendment). Monitoring release tags for opportunities in your pipeline allows you to detect cancellations promptly.

How does the OCDS tender stage relate to the record?

The tender stage data from one or more releases is compiled into the tender section of the OCDS record for that contracting process. The record shows the current, merged state of the tender (reflecting any amendments), while the underlying releases preserve the full history of how the tender evolved.