You can create and edit the maps in the Mapping UI.
The Mapping screen contains the following views:
For more information, see Mapping table
You can quickly obtain an automatically generated mapping relationship using the in the Propose mapping button in the tool bar of the mapping table.
For more information, see Data Source View
You can drag and drop a parameter from the data source view into the Mapping table (in the same row) as the Entity set property to which you want to map the data source.