SAP Business Suite is described as 'Set of integrated business applications that help large or midsize companies execute business and IT strategies with services-enabled technology for comprehensive business process support, reporting, and analytics for all industries' and is an app. There are more than 100 alternatives to SAP Business Suite for a variety of platforms, including Web-based, Windows, SaaS, Mac and iPhone apps. The best SAP Business Suite alternative is Odoo, which is both free and Open Source. Other great apps like SAP Business Suite are ERPNext, Dolibarr, Bitrix24 and EspoCRM .
Open-source business application suite developed in Python, offering ERP, CRM, e-commerce, and project management, reducing software needs and synchronization costs with over 260 core modules.
Almost everyone thinks Odoo is a great SAP Business Suite alternative.
ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.
Dolibarr ERP & CRM is a modern and easy to use open-source web software package to manage your business (customers, invoices, orders, products, stocks, agenda, e-mailings, shipments...).
Replace a multitude of services and apps with a single ecosystem for your business to work in. Explore the tools of Bitrix24.
EspoCRM is an Open Source CRM (Customer Relationship Management) software that allows you to see, enter and evaluate all your company relationships regardless of the type. People, companies, projects or opportunities. Written in PHP and JavaScript.
Mautic is marketing automation software (email, social, & more). Install on your own website or create a free hosted account. The simple 3-step setup process takes less than 5 minutes and you'll be ready to reclaim control of your marketing.
Open-source CRM combining advanced features, sleek intuitive interface, secure user-controlled data management, team collaboration, user-driven customization, and freedom from vendor lock-in, suitable for small and medium-sized businesses seeking flexibility.
Comprehensive web-based CRM offering solutions for sales, marketing, service, and call centers, with mobile app, AI insights, customizable tools, and AppExchange for industry needs.
Tryton is a three-tiers high-level general purpose application platform under the license GPL-3 written in Python and uses PostgreSQL as database engine.
Manage customer relationships effortlessly within your Gmail by sharing contacts, managing deals, and replacing external tools. With cloud-based access and user-friendly setup, adjust workflows as needed and work from any device. Supports Google Apps and is mobile-friendly.
Insightly is a web-based application that serves as a project management tool and a Customer Relationship Management (CRM) system. It integrates with Google Apps through a Gmail gadget and supports Google Docs.
Teamopipe is a CRM tool that integrates directly with Gmail, allowing users to manage and nurture customer relationships effortlessly through a seamless web extension.
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I think Odoo used to be good in the past when it was "really" free and fully featured, but now it cannot be used really in the context of fully featured free open-source.