Compiere ERP+CRM is the leading open source ERP solution for Distribution, Retail, Manufacturing and Service industries. Compiere automates accounting, supply chain, inventory and sales orders. Compiere ERP is distributed under GPL V2 by Compiere, Inc.
Interna is a billing software able to manage customer- and productrelated data and statistics. The document managment is able to generate the types quotation, order confirmation, delivery note, invoice and credit advice in english and german.