ERP systems are established to incorporate a business in enterprise, leading to the effective management of the entire enterprise. The decision to adopt ERP is regularly characterized by investments such as HR time, and financials. Large enterprises typically have these abilities; to make the implementation processes easier when compared to SME enterprises. Whereas SMEs continue to be dynamic pushers of economic development, they frequently encounter numerous problems during implementation technologies such as ERP systems. SMEs are usually characterized by a lack of financial, human resources, technical knowhow to support challenges. They also run their business manually, without homogenous practices.This book focuses on offering a guide to SMEs, majorly those planning to perform the ERP System as their first attempt. Also touches on critical factors, elements that may cause the success or failure of the ERP being implemented for the first time. What so special about the points that it narrows down to critical challenges that can make SMEs regret implementing the system and offer a way forward to handling the problem using business model driven to customization of the existing ERP