SAP IBP ( Integrated business planning) is a process for translating desired business outcomes into financial and operational resource requirements, with the overarching objective of maximizing profit and / or cash flow, while minimizing risk. SAP Integrated Business Planning (IBP) is a real-time supply chain application built on the S/4HANA platform. It’s designed to leverage real-time data, a user-friendly dashboard, and predictive analytic tools to optimize business planning cycles. 
IBP is made of up of 4 foundational components: Sales and Operations, Response and Supply, Inventory, and Demand. The Supply Chain Control Tower acts as the centralized visual interface of all the IBP components. Each component is independent, so you can use only what you need. If you need one of the other components in the future, it will be data current, but it will stay in the background until called.