Update Custom Field

curl --request PUT \
  --url https://api.sendx.io/api/v1/rest/customfield/{customfieldId} \
  --header 'Content-Type: application/json' \
  --header 'X-Team-ApiKey: <api-key>' \
  --data '{
  "name": "Updated Field",
  "type": "number",
  "shown": false,
  "isShareable": true,
  "description": "An updated custom field description"
}'

{
  "id": "encrypted-id-123",
  "name": "Updated Field",
  "type": "number",
  "description": "An updated custom field description"
}