You can identify promoters by: id , cust_id , auth_token , promoter_email or ref_id(referral id). You need to pass at least one of these parameters.
The promoter's ID inside FirstPromoter
Your customer's user ID inside your application/system for the promoter.
Referral ID. If this is blank an ID is assigned based on the first name. Can be only lower-case letters, numbers, -(hyphen) and _(underscore)
Authentication token generated when the promoter was created
Show promoters response