Amid the humanitarian crisis of Covid-19, Indonesia has discovered a silver lining. The digitization of traditional offline businesses is accelerating in the shadow of the pandemic. Now, e-commerce and fintech players are fighting to dominate the digital world.

For Lotte Group, the fifth largest conglomerate in South Korea, the response to the crisis was not just about braving the storms of the pandemic but also about accelerating pre-COVID-19 developments. Lotte saw its e-commerce app, Lotte On, as the key to its business transformation. Building on the idea of “open innovation,” or the practice …