The 2020 coronavirus pandemic revealed weaknesses in the supply chain systems. Organizations worldwide (in the public and private sectors) have shown varying degrees of capacity to respond. This revealed a break in the collaboration required to track, trace, authenticate, finance and clear medical products, supplies, etc. through trade channels in a reliable, verifiable and efficient manner. These global events highlight the need for an interconnected and interoperable supply chain in a world after COVID-19. Contrary to common belief, this specific challenge is not only a technological problem, but also a problem of governance, data ownership and commercial business models in terms of how they encourage ecosystem actors to collaborate between them. For this reason, this white paper takes a holistic approach to blockchain interoperability. This is the subject of the seventh white paper in this series, published today by the World Economic Forum, in collaboration with Deloitte, which helps organizations understand the current state, nuances and importance of block chains. interoperable and describes a decision framework to support their development and execution.