eSentool (TED eSender Validation)

eSentool is the technical validation and testing service provided by the TED Publication Office to support eSender organisations in verifying that their eForms notice submissions are correctly formatted and compliant with the TED submission schema before they are processed in the live publication environment. It is a quality assurance tool for the technical teams that build and maintain eProcurement systems that submit notices to TED.

What is eSentool (TED eSender Validation)?

When the EU transitioned to eForms as the mandatory notice format for TED (mandatory for EU member states from October 2023 under Commission Implementing Regulation (EU) 2019/1780), eSender systems needed to generate notices in a significantly more complex XML schema than the previous standard forms. eSentool was developed to help eSender developers validate their output against the live TED schema without risking real publication failures in production.

eSentool provides:

• Schema validation. Checks that an eForms XML notice file conforms to the eForms XML schema at the structural level: required elements present, correct data types, valid code list values.
• Business rules validation. Beyond schema conformance, eForms notices must satisfy a set of business rules (BT rules) that define permitted combinations of fields and conditional requirements that vary by notice type and procurement directive. eSentool validates these rules, which are more complex than schema-level checks alone.
• Error reporting. Validation failures are returned as structured error reports identifying the specific field, the violated rule, and the expected value or format. This diagnostic detail helps developers fix issues efficiently rather than guessing at the cause of a rejection.
• Test environment access. eSentool connects to the TED test environment, allowing eSender systems to perform end-to-end submission tests against a replica of the production TED system without affecting real published notices.
• Multiple eForms versions. As the eForms standard is versioned and updated, eSentool supports validation against multiple eForms versions simultaneously, allowing eSenders to test against both the current mandatory version and upcoming versions during transition periods.

eSentool is used primarily by the technical developers of eSender systems and national eProcurement platforms, not by individual contracting authorities. The eSender Portal has its own built-in validation for direct submissions, but eSentool provides richer diagnostic output suited to system-level integration testing.

Why it matters for bidders

eSentool is a technical tool for buyers and platform developers rather than for suppliers. However, the quality of eSender validation directly affects the reliability of notice publication that suppliers depend on. eSender systems that properly validate notices through eSentool before submitting them to TED publish notices more reliably, with fewer rejections and delays. Delays in notice publication can compress the effective bidding window for suppliers.

From a market intelligence perspective, the existence of eSentool and its adoption by national eProcurement platforms reflects the EU's commitment to structured, machine-readable procurement data. The richer eForms data that validated submissions produce improves the quality of structured data available through the TED API and TED Data Download.

Example

A national eProcurement platform in Lithuania is upgrading its TED submission module from the legacy standard forms to eForms. The development team uses eSentool to run 200 test notice files through validation before deploying the new module to production. eSentool returns 47 business rule errors across the test set, primarily in the award criterion description fields. The team fixes the generation logic and reruns validation, achieving clean validation before going live.

Frequently Asked Questions

Is eSentool available to contracting authorities directly?

eSentool is primarily designed for eSender technical teams. Contracting authorities using the eSender Portal for direct submissions have access to built-in portal validation, which is simpler and sufficient for manual notice creation. eSentool's detailed diagnostic output is most useful in automated system integration contexts.

Does eSentool cover all eForms notice types?

Yes. eSentool validates all eForms notice types, including prior information notices, contract notices, contract award notices, ex ante transparency notices, and corrigenda, across the notice subtypes defined for each EU procurement directive.

Where can I find eSentool documentation?

eSentool documentation and access instructions are published by the TED Publication Office on the TED developer resources pages. The eSentool API is documented with OpenAPI specifications to support integration by eSender development teams.