1. From Setup, enter External Data Sources in the Quick Find box, then select External Data Sources.
2. Click New External Data Source. To modify an existing external data source, clickEdit.
3. Complete the steps for your type of external data source.Files Connect: Google DriveFiles Connect: SharePoint 2010 or 2013Files Connect: SharePoint Online or OneDrive for BusinessFiles Connect: BoxSimple URL: Data from Another Web DomainSalesforce Connect: OData 2.0Salesforce Connect: OData 4.0Salesforce Connect: Cross-OrgSalesforce Connect: CustomFederated Search
4. Files Connect: Google Drive
5. Files Connect: SharePoint 2010 or 2013
6. Files Connect: SharePoint Online or OneDrive for Business
7. Files Connect: Box
8. Simple URL: Data from Another Web Domain
9. Salesforce Connect: OData 2.0
10. Salesforce Connect: OData 4.0
11. Salesforce Connect: Cross-Org
12. Salesforce Connect: Custom
13. Federated Search