If you want to build a Software as a Service (SaaS) product for your enterprise customer, then you must first think of a way to streamline the process. Building complete enterprise products from start to finish can be ultra-demanding from both a security and functionality point of view, and will require you to first conduct a deep dive into the specific industry workflows.
So, to do this you need a Minimum Viable Product (MVP), to validate the value proposition of your product with a minimal development effort. With MVP a new product or service is developed with core functionalities, to test how the target audience would respond. Then, the actual product, with a full set of features, is developed after feedback is received from the early adopters.