Definition
Middleware is software that connects systems and controls how data moves between them. It may include APIs, queues, transforms, business rules, logs, and monitoring.
Why this matters in your Manufacturer-to-Business project
Middleware can keep ERP, ecommerce, PIM, CRM, CPQ, EDI, and shipping systems from becoming a fragile mesh of hidden one-off connections.
In your manufacturer-to-business commerce project, a term like Middleware should be tied to a real workflow. The practical question is not whether the term appears in a vendor feature list. The question is which buyer path, internal handoff, system record, approval rule, or operating risk it affects for you.
During planning, translate this term into requirements, data ownership, test cases, launch boundaries, and support responsibilities. That keeps the conversation grounded in how your company actually sells, fulfills, and supports customers and dealers.