End Point URL:
https://yourInstance.salesforce.com/services/data/v52.0/sobjects/ObjectAPIName/ExternalIdFieldAPI Name/ExternalIdValue
Example:
https://infallibletechie5-dev-ed.my.salesforce.com/services/data/v51.0/sobjects/Employee__c/Email__c/[email protected]
Workbench:
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Reference Article – https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/using_resources_retrieve_with_externalid.htm
To use Postman client, use the below steps.
1. Create a Connected App. Update the Callback URL as per your domain URL.
Callback URL Syntax:
https://{domain URL}.salesforce.com/services/oauth2/callback
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2. Use the Consumer Key and Consumer Secret from the Connected app.
3. Do POST request and get the access token.
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4. Do GET request with the access_token from step 3 and get the data.
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