In the context of Mail.ru advertising, what is the role of 'exclusion audiences' in refined targeting strategies?

In the context of Mail.ru advertising, the role of 'exclusion audiences' in refined targeting strategies is to prevent your ads from being shown to specific groups of users. Exclusion audiences allow you to exclude users who have already converted, are not relevant to your campaign goals, or are known to be low-quality leads. This ensures that your advertising budget is focused on reaching the most promising potential customers and avoids wasting impressions on users who are unlikely to convert or engage with your ads. For example, you might create an exclusion audience of existing customers to avoid showing them acquisition-focused ads, or you might exclude users who have unsubscribed from your email list. By strategically using exclusion audiences, you can significantly improve the efficiency and effectiveness of your targeting efforts.