In recent years, there has been a growing demand for Supply Chain Management (SCM) to become more agile, integrated, and data-driven, especially with the advent of Industry 4.0. To meet this demand, companies have focused on implementing Integrated Sales and Operations Planning (S and OP) processes, which seek to integrate and align the activities of Sales, Operations, Demand Planning, Supply Planning, and Finance. A qualitative approach was adopted for the development of this research, using a literature review as the investigation procedure. The overall objective of this research is to demonstrate the importance of implementing the S and OP system in modern industries. As a result, an alignment in the company's perception of the level of service expected by the customer is observed, focused on delivery time and commercial conditions, but its process has areas for improvement when viewed in the light of S and OP.