It's absolutely essential for a business to maintain an excellent relationship with their customers. It's also a very challenging task to keep track of each customer and that's where CRM (customer relationship management) system comes into play.

Here is are some of the main functions / features of CRM system:

• Sales: forecasting
• Marketing: create campaigns across multiple channels
• Customer Support: upsell to existing customers
• Reporting: monitor performance
• Administration: manage easily across departments