The best practice for managing requested changes to the original requirements is to use a change request log and user stories. A change request log is a document that tracks and records any changes that are requested by stakeholders or identified by the project team during the project lifecycle. A user story is a concise statement that describes what a user wants to do and why they want to do it in Salesforce. The BA should update the change request log with the details of the requested change, such as the description, source, priority, impact, status, and approval. The BA should also draft a new user story that captures the requested change in terms of who, what, and why, and add it to the backlog for prioritization and development. References: https://trailhead.salesforce.com/en/content/learn/modules/business-analysis-change-management/manage-change-requests https://trailhead.salesforce.com/en/content/learn/modules/business-analysis-user-stories/write-user-stories