In Redux Toolkit, multiple slices can be combined into a single Redux store using the configureStore() function. Each slice manages its own part of the state, and all are added as separate reducers under unique keys.
Create individual slices for different features (e.g., userSlice, counterSlice).
Import all slice reducers into a central store file.
Use configureStore() to combine them into one store by passing an object to the reducer field.
Each slice’s name (or key in the reducer object) determines its section of the global state.