Marketing automation helps CRM to build business. Market automation automate workflows and other tasks associated with the marketing function and also include automating marketing campaigns and routine marketing functions. It doesn't replace CRM, but it supplements it by working very closely with the existing CRM system. In a nutshell, a complete market automation package provides a range of features for supporting the marketing function. Read more at: http://it.toolbox.com/blogs/insidecrm/complementing-crm-with-marketing-automation-75560