quaesitum

Latin scholars will be interested to know that this is called 'ius quaesitum tertio'.

To be enforceable, a ius quaesitum tertio must be irrevocable.

A right to ask or recover; for example, in an obligation there is a binding of the obligor, and a jus quaesitum in the obligee.

The third-party beneficiary may claim the benefit only once he has accepted it, and under the ius quaesitum tertio principle may sue for performance.

Before acceptance, however, the ius quaesitum tertio is tenuous so that acceptance of a benefit does not create a right, but rather entrenches that right.

This right, known as a ius quaesitum tertio, arises where the third party (tertius or alteri) is the intended beneficiary of the contract, as opposed to a mere incidental beneficiary (penitus extraneus).

Under traditional common law, the ius quaesitum tertio principle was not recognized, instead relying on the doctrine of privity of contract, which restricts rights, obligations, and liabilities arising from a contract to the contracting parties (said to be privy to the contract).

A contract made in favor of a third party is known as a "third-party beneficiary contract" or simply "third-party contract" (stipulatio alteri or pactum in favorem tertii), and any action to enforce a ius quaesitum tertio is known as a "third-party action".