It is used as a tool for customer relationship management in all companies, which are in any way related to selling, especially in advertising and marketing agencies, insurance companies, media houses and other B2B and B2C companies. CRM systems that track and measure marketing campaigns over multiple networks, tracking customer analysis by customer clicks and sales . CRM software is available as a software as a service (SaaS), delivered via the internet and accessed via a web browser instead of being installed on a local computer. Businesses using the software do not purchase it, but typically pay a recurring subscription fee to the software vendor. Software as a service(SaaS) Some CRM software is available as a platform with extensible features. These systems often referred to as Low Code platforms permit extensive customization without programming.