Guidance on learning SAP IBP

I’m an SAP PP/QM consultant & willing to learn SAP IBP. I got to understand from official SAP document that IBP has 6 modules:

• SAP Supply chain control tower
• IBP for Sales and Operations
• IBP for Demand
• IBP for inventory
• IBP for demand-driven MRP
• IBP for response and supply Are SAP IBP consultants expected to learn & deliver all 6 modules or do they only need to learn & build expertise in any of these modules?