Indonesia's antitrust agency KPPU has fined Google 2.03 trillion Indonesian rupiah (approximately 12.60 million USD) for its monopolistic behavior in the Google Play Store's payment system. KPPU demands that Google stop forcing developers to use the Google Play Billing (GPB) system and allow all developers to participate in the User Choice Billing (UCB) program, while also providing at least a 5% service fee discount within one year after the ruling takes effect. Investigations revealed that Google compelled Indonesian developers to use the GPB system and charged up to 30% fees, prohibiting other payment options, which led to user attrition, decreased transaction volumes, and revenue losses. Google plans to appeal the ruling and stated that its current practices support healthy competition within Indonesia's app ecosystem. Google has previously faced fines and regulatory investigations for similar anti-competitive behaviors in India, South Korea, and the European Union. Japan's antitrust agency may be the next country to rule against it for violations of antitrust laws.