Magento integrates well with a few different ERP/accounting systems including Microsoft Dynamics GP, NAV, SL and SAGE. Our company actually provides integration solutions for each system so that you can easily integrate Magento with these systems.
nChannel can easily connect Magento to your ERP or Accounting solution to help you centralize orders, synchronize inventory or to even help you syndicate items efficiently. nChannel subscribers can choose how they wish to integrate financial transactions too. We give you plenty of options for integrating accounting transactions, including GL, Summary, Item detail and even real-time sales order integration. Additionally, nChannel can automatically create Purchase Orders for for your accounting system for out of stock or low stock items. Real time order integration for ERP and Accounting is custom quoted.
You can read more here: http://www.nchannel.com/connect-magento-2/
Feel free to give us a call or email so we can figure out the best solution for you.