This case study explores AstraPay’s journey to become a significant player, despite its latecomer status, in Indonesia’s burgeoning digital payments landscape. Launched in 2018, AstraPay had grown to serve over one million customers, but it faced intense competition from tech-first digital super-apps like GoTo and OVO. Led by Rina Apriana, who became CEO in 2023, AstraPay had to leverage its unique position within Astra International, a vast conglomerate with deep roots in Indonesia’s economy, to differentiate itself. The case first explores the conceptual differences between a platform and an ecosystem. It then considers how AstraPay can leverage Astra International’s unique characteristics to unlock synergies and evolve into an ecosystem. The question is underpinned by considerations on how AstraPay can best leverage its late mover status to compete with established digital first competitors. Finally, the students are encouraged to explore a range of alternative options available to Astra for building its ecosystem by highlighting the pros and cons of each approach against which to assess the final path taken by AstraPay.