StratosERP is a module set that allows you to use Drupal as a major part of your business operations in areas that Quickbooks and MYOB are lacking. The Drupal node system is used so that almost any other Drupal module can also be added to expand the power of the system. Existing Drupal modules are employed wherever possible, using Views, Gmap, Date, and Calendar modules in particular. The Stratos ERP module can act as the core of a small business, handling all aspects of it except tax reporting and employee payroll. Its features include franchises, stores, quoting/estimates, invoices, purchase orders, payment receipt, stock tracking over multiple stores with the option of tracking by serial number, job tracking, automated item/pricing import from CSV/XLS files via the Web or email, PDF generation of invoices for email, Ubercart item synchronization, POS instant login via RFID tag, and more.
iDempiere is a complete business suite. It includes functionalities like ERP, CRM, SCM, Web store, financial analysis, etc. It has been translated into many languages. It is based on the famous Compiere/Adempiere projects and has been re-architected with OSGi for even better extensibility options.
KwaMoja is a system that helps you manage your business in a more efficient and profitable manner. It offers multi-currency sales orders, accounts receivable, purchase orders, and accounts payable, a tendering module, multiple inventory locations, unlimited price lists by customer and currency, standard and reversing journals, general ledger journals for all transactions in accounts receivable and payable, standard costing, user definable sales analysis reports, standard cost stock valuation and stock planning reports, a manufacturing module including work orders and MRP, a fixed asset register, a petty cash module, and serialized inventory and lot tracking.