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> Mirror of <https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/data-cloud-query-api-reference/c360a-api-universalidlookup-entity-name-datasourceid.html> (Salesforce, Data 360 Query Guide), read 2026-10-23. Salesforce's own page is the authority; this copy exists because that site refuses non-browser readers.

## Retrieve Individual Records by Unified ID

Retrieves all individual records associated with a unified record across different data sources. This endpoint allows you to find all individual IDs for a person across various systems, such as retail sales, loyalty programs, and mobile identity platforms.

*   **HTTP Method**: GET
*   **Availability**: Data 360 v1.0, Salesforce API version 54.0 and later
*   **Format**: REST
*   **URI**: `/api/v1/universalIdLookup/{entityName}/{DataSourceId__c}/{DataSourceObjectId__c}/{SourceRecordId__c}`

| Parameter | Type | Description |
| --- | --- | --- |
| entityName | string | Required. The name of the bridge table entity. |
| DataSourceId__c | string | Required. The data source ID. |
| DataSourceObjectId__c | string | Required. The data source object ID. |
| SourceRecordId__c | string | Required. The primary key of the data source record. |

SourceRecordId__c maps to Individual ID of Individual data model object. For more information, see [Individual DMO](https://developer.salesforce.com/docs/data/data-cloud-ref/guide/c360dm-individual-dmo.html).

The response includes:

*   `data`: Array of record objects containing the requested data
*   Each record contains: 
    *   `SourceRecordId__c`: The source record ID
    *   `UnifiedRecordId__c`: The unified record ID
    *   `ssot__DataSourceObjectId__c`: The data source object ID
    *   `ssot__DataSourceId__c`: The data source ID

*   The API follows REST standards for consistency
*   All responses are in JSON format
*   Error responses include detailed error messages
*   The API supports both primary and secondary key searches
*   You must explicitly specify fields to retrieve more than 10 fields


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