The SAP Engagement Cloud Scripting Language (ESL) enables you to create dynamic content in your campaigns by leveraging predefined rules.
Unlike standard personalization options that rely solely on contact database fields, the ESL serves as a robust scripting language. It allows you to personalize your content based on external factors, such as utilizing Relational Data.
ESL requires a certain level of HTML knowledge to have a solid understanding of the fundamental concepts. Even without prior coding experience, you can acquire the basic skills to start working with ESL.
As a quick reminder, here is the onboarding video about ESL: