Odoo is an open-source enterprise resource planning (ERP) software that can be customized as per the specific needs of a client. Customization creates a personalized experience in an application based on the client's needs and ideas. One way through which customization can be done in Odoo is by using modules. Modules are pre-built packages that add specific functionality to the Odoo system. Ten Orbits provides different modules such as accounting, inventory management, CRM, Fleet, recruitment, HRM and many more. These modules can be easily installed and configured to work with the existing Odoo system. Another way to customize Odoo is through development. This involves creating custom modules or modifying existing modules to meet the specific requirements of a business.