The rapid expansion of digital commerce in Indonesia has transformed the way in which parties negotiate, conclude, and perform contractual obligations, yet the legal architecture governing these transactions remains rooted in a civil code drafted more than a century before the advent of electronic communication. This article examines how the foundational principles of Indonesian contract law consensualism, capacity, a determinate object, and a lawful cause as codified in Article 1320 of the Civil Code are applied to electronic contracts and reconciled with the specific requirements introduced by Law Number 11 of 2008 concerning Electronic Information and Electronic Transactions, as amended, and its implementing regulation, Government Regulation Number 71 of 2019. Employing normative legal research supported by a review of judicial decisions and secondary literature, the study finds that while the formal validity of electronic contracts is now firmly established in statute, the practical enforcement of such contracts before Indonesian courts continues to be complicated by unresolved questions of evidentiary weight, the certification status of electronic signatures, jurisdiction over cross-platform disputes, and the protection of economically weaker parties bound by standard-form electronic agreements. The article further shows that judicial practice has developed unevenly: courts increasingly admit electronic evidence, yet they continue to apply inconsistent standards when assessing the authenticity and integrity of that evidence. Drawing on recent Indonesian scholarship and documented court practice, the article concludes that legislative recognition alone cannot guarantee enforceability, and that coherent procedural guidelines, judicial training, and closer integration between electronic transaction law and civil procedure are necessary to secure legal certainty for electronic contracting in Indonesia.
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