Add Leads to a List

You can add up to 10,000 leads at a time. However, each Lead List can have a maximum of 60,000 leads. When approaching this limit, new leads will be added partially until the limit is reached. When the limit is hit, a 409 HTTP status code will be returned. Enriching, email validation, and reveal settings are inherited from the Lead List settings. If credits are spent, those will be deducted from the admin user of the account.