Explanation of Article 146
This article clarifies three cases in which undue payment may be reclaimed: if the payment was made in execution of an obligation whose cause did not materialize or ceased after its realization, or if the payment was made in execution of an obligation whose term had not yet matured and the payer was unaware of the term's existence. These cases are also based on the principle of unjust enrichment, where the recipient has been enriched without a legitimate cause.
Related To
Article 146
Undue payments may be recovered if made in the performance of an obligation the purpose of which was not realized or ceased to exist, or in the performance of an obligation that is not yet due and the payer was not aware of the due date.