To measure the effectiveness of your gift guides, track the following metrics: - Open Rates: Indicates how many recipients opened your email. - Click-Through Rates: Shows how many recipients clicked on links within your email. - Conversion Rates: Measures the percentage of recipients who made a purchase after clicking through. - Revenue Generated: Calculate the total sales generated from the email campaign. - Customer Feedback: Collect feedback to understand what worked well and what can be improved for future campaigns.