Yes, Customer Relationship Management (CRM) is both a module within the Enterprise Resource Planning (ERP) tool as well as a dedicated software that takes care of your customer service and excellence needs.
ERP: ERP delivers wide-ranging benefits and caters to different functional needs. It automates various activities and provides powerful planning & analytical tools to achieve cost-saving benefits.
CRM: CRM Software builds a database of all the customers. It allows you to track customer communications, retain purchase history, and nurture good relationships with them. It provides powerful functionality to expand your customer base and grow your business.