Odoo is an open source ERP software that has a suite of various applications. It is an all-in-one solution that covers all important modules of a business such as Warehouse management, Purchase management, CRM, Sales management, E-commerce, Accounting suit, Manufacturing management, HRMS, etc. Odoo ERP software is a license-free software designed to provide complete ERP solutions for covering the most important business needs and modules. Furthermore, it is the best fit for small to large companies. Here are the top reasons for choosing Odoo ERP software : 1. A complete solution: Functions such as accounting, human resource, CRM, sales, warehouse, etc. are common in every business. To manage them effectively, companies keep multiple software systems.