A CRM application architecture outlines the strategy, structure, and processes necessary for successful customer relationship management. CRM software, as shown in the below image, plays a central role in implementing this architecture. The key elements of a successful CRM application architecture are sales management, member management, market management, service management, key account management, and rent management. The CRM database connected with the electronic channel management system has PDA, text message, email, website, and call center. As per the image, CRM application architecture allows one to measure the value of each client and each project.