Perfex CRM version 2.3.0 comes with a built-in feature to create modules and integrate additional features into the core functionalities..

Modules are packages of code that extend the core functionality of Perfex CRM , by making your own module you are extending Perfex CRM or integrating brand new features.

The modules can consist of action hooks, filters, controllers, models, custom php classes/libraries, language files, views, this code base is already used in Perfex CRM.