The tendency is that if company uses Microsoft-driven computer park (Windows domain, SQL Servers, MS Exchange) the rest of the ERP/CRM applications are Windows-oriented.  However you can have successful bridge between non-Microsoft ERP and Great Plains: Oracle, IBM Lotus Notes/Domino, DB2 or others), usually it involves Java/CORBA/EJB/JSP type of expertise.

• Microsoft RMS-Great Plains integration.  There are few options – first one is to use standard integration, coming with MS RMS.  It has Dexterity interface in Great Plains, does integration to single company at the time.  Doesn’t integration on SOP/AR level, however.  Second option is to use integration, maintained by Alba Spectrum Technologies – it integrates unlimited number of stores, SOP/AR/POP, posts through Bank Reconciliation module and so allows to track Check Books/Credit Card balances.  This integration also has Dexterity interface for Stores-GP Companies mapping and could work as nightly or real time SQL Server routine
• Microsoft CRM-Great Plains integration.  This integration is maintained by Microsoft Business Solutions and allows you to synchronize SOP and Customers in Great Plains with Microsoft CRM Quotes and Orders.  Microsoft CRM has open Microsoft CRM SDK and so you can customize and integrate Microsoft CRM at will, having C# or VB.Net in-house expertise.  The above mentioned integration could be altered and tuned
  

   

  
  by programming MS BizTalk server (it can use either BizTalk runtime or regular license)
• Microsoft Great Plains as Back office for eCommerce web-site.  Here we need to mention interesting thing,  The product, created and dedicated to eCommerce developers – Great Plains eConnect is often considered as a bit expensive and licensing-restricting solution.  If your company is ISV and implements eCommerce product, integrating to Great Plains – you would rather prefer set of open and simple stored procedures, moving data to and retrieving from Microsoft Great Plains Sales Order Processing (SOP) module
• Microsoft Great Plains integration with Oracle.  Well – you can do it either from Oracle or from MS SQL Server side – in both cases you have linking tools and heterogeneous queries mechanisms
• Microsoft Great Plains integration with Lotus Notes/Domino. – If you want Great Plains documents lookup from Lotus – you typically use ODBC connection to MS SQL Server.  You need to know Great Plains tables structure (Tools->Resource Description->Tables in Great Plains)

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