# Connect Customer Rules Function language
<a name="connect-rules-language"></a>

This section describes the Connect Customer Rules Function language. You can use it to add conditions to rules programmatically. The function language is a JSON-based representation of a series of rule conditions.

**Topics**
+ [Concepts](rules-language-concepts.md)
+ [Example rule function in Connect Customer Rule Function language](example-rule-function.md)
+ [Conditions in Connect Customer Rules Function language](rule-function-conditions.md)