When new legal requirements emerge during a project, it is essential to assess the impact of these changes on the project deliverables. The project manager should collaborate with relevant stakeholders to understand the implications of noncompliance and determine the necessary actions to align with the new requirements. This may involve updating the project's risk register to reflect the new risks associated with these legal changes and developing a plan to mitigate them. This approach is in line with the PMBOKGuide's principles, which advocate for proactive risk management and stakeholder engagement12345.
References:
* "My project should be compliant - Project Management Institute."
* "How Laws and Regulations Affect Projects - The Project Management Podcast."
* "Regulatory Impact Assessment and Project Management."
* "Project Legal And Regulatory Environment - The Projex Academy - PMP."
* "(PDF) Project Management and Regulatory Compliance - ResearchGate."

Explanation
According to the Agile Practice Guide, one of the agile principles is to satisfy the customer through early and continuous delivery of valuable products. To achieve this, the project manager should involve the customer and other stakeholders in frequent feedback loops, such as sprint review sessions, where the team demonstrates the working product increment and collects feedback for improvement. This way, the project manager can ensure that the product features align with the customer's expectations and needs, and avoid product rejection or rework. Creating dedicated sprints to fix the rejected features, asking for a new product owner, or sharing the product backlog in advance are not effective ways to mitigate the product rejection, as they do not address the root cause of the misalignment between the team and the customer. References: Agile Practice Guide, pages 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, and 22. ErudiCAT.