A guarantee means that someone must be judged and agree to watch you. Your guarantee must also promise the court a certain amount of money as collateral. If you do not respect the terms of your deposit and your security does not report you, your security may have to pay the money you promised in court. The person making the statement is the promise. The person to whom the statement is made is referred to as a promise. In general, taking into account the past is not a valid consideration and has no legal value. The attention of the past is a reflection that has already been received by the promise made to the promisor. In other words, the act or indulgence of the proceeds of the promise is the result of the promise of the promisor. The current consideration cannot therefore be used as the basis for the action for damages.  Promissory is the legal principle that a commitment is legally applicable, even if it is made without formal consideration, when a promise has been made to a promise which, to its subsequent detriment, will be based on that promise. Promissory estoppel aims to prevent the promisor from arguing that an underlying promise should not be respected or executed legally.
The doctrine of sola change is part of the law in the United States and other countries, although the specific legal requirements for solatory estoppel vary not only between countries, but also between different jurisdictions, such as states, within the same country. In the common law, it is necessary for both parties to propose a reflection before a contract can be considered binding. The doctrine of respect is irrelevant in many legal systems, although current commercial relations have maintained the relationship between a promise and an act that reflects the nature of contractual considerations. If no evidence of cross-assessment is found, then no contract is entered into. An example of a change of estoppel could be used in a case where an employer orally agrees to pay the worker a certain monthly or annual amount for the duration of the worker`s retirement. If the employee then retires on the promise of the employer, the employer could be legally prevented from not keeping its promise to pay the declared pensions. Civil law systems assume that the exchange of promises or agreements of will is the sole basis and not the exchange of value rights.