Terms and conditions that actually get incorporated

Most companies have general terms and conditions. Far fewer can say with confidence that those terms are actually part of their contracts. The document exists, it sits on the website, sales mentions it occasionally, and everyone assumes that is enough. Often it is not.

Under Swiss law, general terms are not a magic layer that applies because you wrote them. They are contract content like any other, which means the other party has to agree to them. If the terms were never properly brought into the deal, the clauses you rely on most (liability limits, payment terms, warranty exclusions) may simply not exist when you need them.

Terms bind only if they made it into the contract

The basic test is unglamorous: did the other party have a reasonable opportunity to know the terms before or at contract formation, and did they accept the contract on that basis? A reference after the fact does not help. Terms printed on an invoice, mentioned for the first time in an order confirmation that follows a concluded deal, or posted somewhere on a website nobody was pointed to, arrive too late.

There is a second filter, the unusualness rule confirmed in BGE 135 III 1. Even terms that were formally accepted may not hold in full if a clause is so unusual that the other side could not reasonably expect it in that position: particularly where the terms were accepted globally, without being read, as most terms are. Courts protect the weaker or less attentive party against surprises buried in fine print. The practical lesson: the more unusual and burdensome a clause, the less you should hide it in the terms, and the more it belongs in the signed document itself.

The battle of forms, in plain language

Now the harder problem. Your quote references your terms. The customer's purchase order references its purchasing conditions, and states that only those apply. Nobody reconciles the two, the goods ship, the invoice is paid. Whose terms govern?

This is the battle of forms, and Swiss law does not give it a single clean answer. Depending on the circumstances, the outcome may be that neither set applies where they conflict, and the gaps are filled by the default rules of the Code of Obligations, read for the parties' actual common intention (Art. 18 CO). BGE 148 III 57 is the reference on how general terms are incorporated and construed. A further limit sits on top: terms that create a significant and unjustified imbalance can be attacked as unfair (Art. 8 UCA). That is worth pausing on: both sides negotiated liability caps, and both may end up with the default statutory regime instead, which is often more generous to claimants than either template.

The uncomfortable truth is that in a genuine battle of forms, the answer to "whose terms apply" is frequently "it depends on the facts", on who sent what, when, and how the parties behaved afterwards. That uncertainty is precisely what you want to design out of your contracting process, because you discover the answer only in a dispute, which is the worst possible moment.

Making incorporation actually work

The fixes are procedural, not clever drafting. A few practices carry most of the weight:

• Reference the terms before the deal is done (in the quote, the offer, the order form) not in documents that follow formation, and state clearly that they form part of the contract.
• Make the terms genuinely available at that moment: attached to the offer, or reachable at a stable address given in the reference. "Available on request" is weaker than handing them over.
• Capture acceptance. A signature or checkbox covering the terms is strongest; an order placed in response to an offer that clearly included them is workable.
• In online flows, put the terms in the path of the transaction, not in the footer.
• Keep versions. When terms change, you need to know which version a given contract incorporated, and existing contracts do not update themselves just because the website did.

For the battle of forms, the honest mitigation is to notice it. Train the people who process orders to spot a counterparty's conflicting conditions and to respond, rather than performing the contract in silence. For relationships that matter, replace the exchange of forms with a signed framework agreement that expressly overrides both sets of standard terms.

Treat your terms as a system, not a document

General terms fail at the process level far more often than at the drafting level. A well-drafted document that never gets incorporated is worth less than a modest one that reliably does. This is also where structured review earns its keep: checking incorporation language across quotes, order forms and online flows is repetitive, pattern-based work: the kind our systems do across a whole portfolio, with a lawyer resolving the cases that are genuinely unclear.

If you are not certain your terms would survive contact with a dispute, that is worth finding out now rather than then. We are happy to take a look.