An immutable field key is generated each time you create a new custom option in Greenhouse Recruiting. This key enables downstream apps, like HRIS and other integrations, to detect the presence of your custom fields in exported data.
Find an immutable field key
When you create a new custom option in Greenhouse Recruiting, an immutable field key is automatically generated.
To find an immutable field key, navigate to Configure > Custom Options > then select the type of company metadata, like candidate or offer fields.
Find your custom field in the list, and click on it to view details.
The immutable field key is listed at the bottom of the details page.
Use an immutable field key
You can use immutable field keys for a variety of use cases.