Customer Relationship Management (CRM) is a set of software programs that let companies keep track of everything they do with their existing and potential customers.
At the simplest level, CRM software lets you keep track of all the contact information for these customers. But CRM systems can do lots of other things, too, like tracking email, phone calls, faxes, and deals; sending personalized emails; scheduling appointments; and logging every instance of customer service and support. Some systems also incorporate feeds from social media such as Facebook, Twitter, LinkedIn, and others.
Examples of CRM’s are Salesforce, NetSuite CRM and Zoho.