There is no cross-sell up-sell module in a CRM package as cross-selling and up-selling depend on the salesperson's relationship with the customer. But, CRM is important in cross-selling and up-selling as it increases your knowledge of the customer and helps you suggest them the right products.  Read more at: http://it.toolbox.com/blogs/insidecrm/crossselling-upselling-and-crm-65152