YaBS is enterprise resource planning software that manages products and contacts as basic data, generates offers, orders, invoices, and reminders from it, and includes basic book keeping. It writes PDF or ODF (OpenOffice format) documents, and is a multiuser system. It is the successor of MP Invoicing. It can use any JDBC compliant database as a backend, and works in heterogenous networks, allowing fine grained security settings. It can also be extended with modules.
Freedom ERP is a business management system that can be used for retailers, wholesalers, manufacturers, service providers, call centers, and other organizations to provide inventory management, purchasing, sales, finance, and more. It has modules for customer management, campaign management, mailing, service management, collections, warranty control, management of production with production based on demand or stock of raw materials, and quality control.