Clause 4.2 of ISO 9001:2015 does not require mandatory documentation. However, organizations often choose to document this information for practical reasons such as ensuring clarity and shared understanding, maintaining consistency over time, supporting risk-based thinking, and providing evidence during audits. While not required, organizations can create documents like a List of Interested Parties and a Procedure for Determining the Context of the Organization and Interested Parties to help document clause 4.2.