curl --request PUT \
  --url 'https://api.stateset.com/api/v1/integration-field-mappings/{id}' \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "destination_field": null,
  "fallback": null,
  "is_active": null,
  "template": null,
  "transform": null
}'

{
  "destination_field": "string",
  "fallback": null,
  "id": "string",
  "integration_account": "string",
  "is_active": true,
  "mapping_group": "string",
  "source_field": "string",
  "template": null,
  "transform": "string"
}