Gartner stirred up some rigorous debate with its recent CRM market share estimates, which put Microsoft Dynamics CRM revenue for 2012 at $1.1 billion, up 26% from 2011. That number was seen as much higher than expected for CRM alone - other estimates usually put the Dynamics business overall - ERP and CRM - at between $1.2 and $1.7 billion.
And the research firm has recently released another report, this one on ERP market share which estimates that Microsoft's ERP business grew 4% in 2012, "mainly driven by Microsoft Dynamics AX".