What is Salesforce Connect and what external data source types does it support?
Suggested answer
Salesforce Connect allows Salesforce to display and query data from external systems in real time without copying it into Salesforce. Data appears as External Objects (suffixed with __x). Supported adapter types:
1. OData 2.0 / 4.0: Connect to any OData-compliant REST API (SAP, SharePoint, etc.).
2. Cross-Org Adapter: Access data from another Salesforce org via the Salesforce REST API.
3. Custom Adapter (Apex): Build a custom data source connector using Apex DataSource classes. External Objects support relationships (External Lookup, Indirect Lookup) to standard/custom objects and SOQL queries, but with limitations — they do not support triggers, roll-up summaries, or all SOQL operators.
Practice content for interview preparation; not an official vendor answer. Verify details against current product documentation.
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