Configure the DFS External Data Source

Configure the DFS external data source to provide the DFS API with information required to return results.

User Permissions Needed
To create an external data source or external object:	Customize Application
To add the external data source to the permission set:	Customize Application

Use the DFS external data source to query other clouds or orgs as an external data source directly.

From Setup in Sales or Service Cloud, enter External Data Sources in the Quick Find box, then select External Data Sources.
Select New External Data Source.
Enter a value for External Data Source.
Enter a name for the External Data Source.
For type, select Salesforce Connect: Data Federation Service (DFS).
Enter v3.0, which is the current DFS API version or another supported version.
For Metadata Repository Key, contact Salesforce Customer Support to get that value and enter it here.
For Mapping Version Name, enter the last mapping set name you activated in Customer 360 Data Manager.
For Data Source Name, enter the name listed on Customer 360 Data Manager Data Sources page for this org.

While a data source name does not have to be unique when you create it, it must be unique to use it with the DFS API named credential. If you want to use these settings to automatically update the DFS named credential, make sure that this name is unique.
Note
Click Save.
Click Validate and Sync.
Select only the SalesOrder object.

External objects associated with DFS cannot be validated after sync.
Note

Selecting the object automatically syncs it.
To see the list of fields in the object, click SalesOrder.
If you can see the list of fields, your configuration is complete.

Data Federation API Developer Guide