A contractual tool requiring careful handling
In complex commercial negotiations, it is common for counterparties to seek to secure their position by ensuring that they benefit from terms at least equivalent to those granted to competitors.
While commercially intuitive, the contractual implementation of such arrangements — typically through “most favoured terms” clauses, raises material legal risks under French law.
At the intersection of contract law, trade secrets protection, and restrictive practices, these provisions are, in practice, high-risk clauses that require careful structuring and drafting discipline.
Trade secrets: an inherent tension in verification mechanisms
The primary friction point lies in how compliance with the clause is verified.
Any provision requiring the disclosure, whether direct or indirect, of third-party contractual arrangements (pricing conditions, economic terms, contractual provisions) gives rise to an immediate and material risk of trade secrets infringement.
This risk is amplified by the fact that such information is typically subject to independent confidentiality obligations.
Absent a robust framework, these clauses may become:
unenforceable in practice, a source of disputes with third parties, or a trigger for contractual liability.
In practice, meaningful mitigation can only be achieved through mechanisms inspired by litigation practice:
tightly controlled disclosure (“confidentiality club” arrangements), use of redacted, anonymised or aggregated data, strict limitations on the purpose and use of disclosed information.
Unilateral termination: a structurally fragile mechanism
These clauses are often coupled with termination rights in the event of breach.
Where such termination relies on a unilateral assessment, including through an advisor appointed by one party, it is legally vulnerable under French law.
In particular:
unilateral termination generally requires prior notice to perform, the breach must meet a sufficient threshold of materiality, ultimately assessed by the courts, the absence of an adversarial process increases the likelihood of challenge.
Moreover, where the parties are in an established commercial relationship, termination without notice may expose the terminating party to claims for sudden termination of established commercial relations, irrespective of the contractual framework.
Restrictive practices: the risk of invalidity
Substantively, clauses aimed at ensuring alignment with competitors’ terms may operate as de facto “most favoured nation” provisions.
Under French law, certain forms of automatic alignment mechanisms are prohibited where they unduly restrict a party’s commercial freedom.
An insufficiently tailored clause may therefore be deemed void, particularly where it distorts competitive dynamics or limits pricing autonomy.
The pitfalls of indeterminate standards
A further source of fragility lies in the use of undefined or loosely framed concepts, such as:
“overall assessment”,
“more favourable conditions”, or the “determinative” nature of the undertaking.
Absent clear parameters, such standards shift interpretative control to the courts, on a case-by-case basis.
This creates:
legal uncertainty, heightened evidentiary burdens, and a significant risk of divergent interpretations.
Evidence: a critical yet often overlooked dimension
The enforceability of these clauses ultimately hinges on complex evidentiary considerations.
French courts increasingly favour a proportionality-based approach, balancing the right to evidence against trade secrets protection through:
targeted disclosure, redactions, and reinforced confidentiality measures.
Outside judicial proceedings, these safeguards must be contractually embedded. Failing this, practical enforcement is likely to prove challenging.
Towards a disciplined drafting approach
Experience suggests that such clauses should not be dismissed outright, but rather carefully engineered.
Key safeguards include:
a clearly defined comparison framework (scope, economic parameters, methodology) robust confidentiality architecture (restricted access, redacted data, limitations on use) a balanced verification mechanism (independent expert, adversarial process) a legally compliant termination framework (notice to perform, cure period, distinction between material and non-material breaches, appropriate notice requirements)
A strategic perspective on contractual design
Beyond their technical aspects, these clauses illustrate a broader challenge:translating a legitimate commercial objective into a legally sustainable contractual framework.
They require an integrated approach combining:
contractual structuring, litigation risk management, and protection of strategic information.
How we can assist you
Clauses of this nature crystallise particularly sensitive issues at the intersection of commercial strategy, competitive exposure, and legal risk. Our firm brings recognised expertise in identifying and mitigating these risks.
We support clients with a highly practical approach in the structuring and drafting of sensitive contractual provisions, ensuring an effective balance between the protection of economic interests, legal compliance, and operational feasibility. In practical terms, we assist clients in:
restructuring high-risk clauses to ensure enforceability and legal robustness, defining clear and defensible contractual standards (scope, objective criteria, verification mechanisms), designing effective confidentiality frameworks governing access to and use of strategic information, structuring control and enforcement mechanisms to reduce litigation exposure.
Our approach is aimed at transforming potentially destabilising provisions into robust, enforceable contractual tools aligned with our clients’ business objectives, both at the negotiation stage and in anticipation of pre-contentious scenarios.
