Create a custom field
Creates a new custom field in your organization. A stable slug is automatically generated from the name and returned in the response. The slug is immutable: renaming the custom field later will not change it.
Authorizations
Enter your API Key (sk_live_xxx or sk_test_xxx)
Headers
Target workspace id (from GET /v1/workspaces). Required for multi-workspace API keys to designate which workspace to write to; omit for single-workspace keys, where it is resolved automatically. Must be within the API key scope.
Body
Name of the custom field
1 - 200"Job Title"
Response
The created custom field
"550e8400-e29b-41d4-a716-446655440000"
Human-readable label. Can be renamed without breaking integrations.
"Job Title"
Stable, immutable identifier derived from the name at creation time. Use this as the key when setting custom field values on a contact via POST/PATCH /contacts.
"job_title"