ISO 9001:2015 4.1: Understanding the organization and its context
The organization identifies the internal and external issues that bear on its purpose and strategic direction and that influence whether its QMS can deliver the outcomes it is meant to deliver, and it keeps information about those issues under monitoring and review. Such issues may be favourable or unfavourable; outside the organization they may stem from law, technology, competition, markets, culture, society or the economy, and inside it from values, culture, knowledge and performance.
This control maps to 31 controls across 23 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.