Which warranty requires a party to do something in a specific way?

A promissory warranty is a type of warranty that specifies a party's obligation to perform in a certain way or meet specific conditions. This warranty clearly outlines the promises made by one party to another, detailing the actions that must be taken or standards that need to be met. The essence of a promissory warranty is its requirement for a performance obligation, which means if the promise is not fulfilled, it may lead to a breach of warranty claim.

In contexts of warranties, the distinction between promissory warranties and other types such as express warranties is critical. An express warranty involves explicit statements or assurances made about a product's quality or characteristics, while an implied warranty is automatically derived from the nature of the transaction or the relationship between the parties, without the need for formal expressions. Affirmative warranties also deal with conditions but may not have the same emphasis on the requirement for specific performance as seen in promissory warranties.

Thus, the defining feature of a promissory warranty is its demand for action or compliance in a precise manner, making it the correct choice in this scenario.