Today, I am first time use TigerCRM system. I am not familiar with CRM. Today, I am testing and learn what is CRM. So, I download TigerCRM that is a popular CRM in opensource. TigerCRM is so nice. It’s easy to use and nice design. It have 4 role that are Admin, Marketing, Account, Production. Most of the myanmar people don’t know about CRM and most of the office don’t use CRM. We should use CRM in our office that I thought. I need to learn detail about CRM and after that I will write what is CRM and how it work ?