Waves are the grouping of warehouse request items and In EWM, you can group the warehouse request items (such as the ODO items) into waves to manage the process and optimize the warehouse processing.
Goods movement in the warehouse follows several steps to complete an inbound, outbound, or internal process; for this, SAP EWM uses storage control.
If you plan to expose your SAP Data (Table or Query Data) to external environment like UI5/Fiori or HANA, then you need to push your data in a form of API. By API we mean, using OData. OData will generate a service link that can be accessed via internet and can be used to perform CRUD operations
REST, or REpresentational State Transfer, is an architectural style for providing standards between enterprise systems, making it easier for systems to communicate with each other. REST-compliant systems, often called RESTful systems, are characterized by how they are stateless and separate the concerns of client and server.
The composable ERP will be far less static. Traditional skills in coding using specific languages, querying, complex report building and application architecture will be supplanted by general coding skills enabled by low-code/no-code platforms and integration building