LP CRM Custom Fields
The current connector does not have discovery / a catalog of custom lead fields (field_id / cf_*), unlike Bitrix / Kommo / KeyCRM.
Only fields from the order, buyer, and product API are available — see Fields and the lpcrm.ts data layer.
If the LP CRM UI has custom fields that aren't in the LightLead catalog, they are not exported until the product adds mapping for them.