Who needs Application Integration? Most businesses employ the use of enterprise applications such as supply chain management (SCM) , enterprise resource planning (ERP) , or customer relationship management (CRM) . When business processes all filter through these large applications, everything works smoothly. But these applications do not always offer the most innovative solution to a common business problem. Cloud and mobile applications often offer an easier way for employees to do certain aspects of their jobs, and when this happens, the organization must create integrations between the old and the new.