Most oral contracts can be enforced in most countries, including Germany. It might be hard to establish that it was part of the contract. For example, if you sp

Most oral contracts can be enforced in most countries, including Germany. It might be hard to establish that it was part of the contract. For example, if you spend a lot of time negotiating a contract, and both parties put a bunch of stuff into the text during the negotiation, then it might appear that anything discussed orally but not written down is not part of the contract.