PDI · Question #173
What are two benefits of using External IDs? Choose 2 answers
The correct answer is A. An External ID field can be used Co reference an ID from another external system. D. An External ID is indexed and can improve the performance of SOQl quenes. External ID fields serve as unique identifiers from outside systems, enabling seamless data integration and improving SOQL query performance due to automatic indexing.
Question
What are two benefits of using External IDs? Choose 2 answers
Options
- AAn External ID field can be used Co reference an ID from another external system.
- BAn External ID can be a formula field to help create a unique key from two fields in Salesforce.
- CAn External ID can be used with Salesforce Mobile to make external data visible.
- DAn External ID is indexed and can improve the performance of SOQl quenes.
How the community answered
(44 responses)- A89% (39)
- B7% (3)
- C5% (2)
Why each option
External ID fields serve as unique identifiers from outside systems, enabling seamless data integration and improving SOQL query performance due to automatic indexing.
External ID fields are specifically designed to store unique identifiers from external systems, facilitating data matching and integration when importing or updating records.
External ID fields can only be of type Text, Number, or Email and cannot be formula fields.
While External IDs aid in data integration, their primary function is not to directly make external data visible in Salesforce Mobile; displaying external data usually involves other integration methods or UI components.
External ID fields are automatically indexed by Salesforce, which significantly enhances the performance of SOQL and SOSL queries that use these fields in their `WHERE` clauses.
Concept tested: External ID Functionality
Source: https://help.salesforce.com/s/articleView?id=sf.custom_field_external_id.htm&type=5
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