# Customers Part of our Data Activation module, Customers is the heart of our CDP (Customer Data Platform) offer. From multiple sources (online and offline), it allows reconciling and aggregating data around user profiles, to create accurate audience segments. By crossing any kind of data (CRM, online behavior on Web & Mobile, offline behavior in shops...), you can create highly accurate segments. More precise segments are, better is the personalization: these segments could be then sent to destinations, and, as a result, you can send a personalized message to a small audience who share same characteristics (in the same segment). Send the right message to the right audience is the key to improve the ROAS (Return On Ad Spent). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://doc.commandersact.com/features/customers.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.