An insider risk analyst at Contoso is reviewing an active case in Microsoft Purview Insider Risk Management. The case was generated from a data leak policy, but after examining the activity timeline the analyst concludes the user's behavior was a one-time accidental oversharing with no malicious intent, and that a light-touch reminder about corporate data handling policy is the appropriate response. Which case action should the analyst take to formally document this outcome while reminding the user of policy expectations?