The procedure contract is separate from the tender contract. The tender contract is concluded when a customer decides on a specific offer from a supplier. The procedural contract is essentially intended to protect “the integrity of the tendering system”6. The procedure contract applies to both public and private tenders and creates “binding obligations for the party reporting the evaluation of each tender in a certain way”7. However, procedural contracts are not automatic, as their existence is subject “to the taking into account of the circumstances and obligations expressly or implicitly accepted8. States also make available guidelines on public procurement to which government authorities must comply. While they all follow similar principles, there are different provisions that can impact the buying process. .