{{id}} = leadid {{sessionid}} = sessionid {{flowid}} = flowid {{flowname}} = flowname {{mobile}} = lead mobile {{email}} = lead email
{{firstname}} = lead firstname {{lastname}} = lead lastname {{channel}} = lead channel {{currentdatetime}} = Current date and time stamp {{custom.fieldname}} = lead custom field (lowercase)
*If the dynamic value is not found it is removed in the payload.
