They do lots of things that’s the problem… The key items in my experience are: 1. Finance/accounting processes 2. Supply chain processes (for product companies) 3. Project/Services processes (for consulting companies) 4. Procurement They can have other things like: sales, customer service, order management, payroll, HR, projects, warehouse or factory management, materials management and so on. A key decision in very large companies is whether to go with one ERP that does most things and they having to integrate the rest (tedious, expensive), or many smaller apps that might be best in class for their niche then having to integrate them (also tedious, expensive)

And ERP is Enterprise resource planning.

Thank you for expanding the acronym. I’m always surprised the acronyms aren’t expanded in projects website. This gives me the impression the developers are embedded in the status quo of the problem domain.