Salesforce Marketing Cloud covers a range of channels to interact and engage with customers and leads. Depending on the license for Marketing Cloud Personalization, users have access to develop campaigns for channels such as web, email, mobile, and third-party integrations. Web campaigns allow personalization of website experiences based on user behavior, preferences, and other qualifying criteria. Server-side campaigns integrate testing and personalization at the server level, requiring developer involvement. Triggered campaigns are based on specific events and can target different user segments with customized experiences. Open Time Email campaigns deliver real-time personalized content to each recipient when they open an email. Mobile campaigns enable personalized experiences within Android and iOS mobile apps.