Affiliate commission report (read-only).

A read-only report of the affiliate commissions this brand has recorded, over a date range of when each was earned (UTC days, inclusive). With groupBy none (the default) it returns one row per commission, paged: its id, the affiliate membership id, amount, rate applied, type, status, the payout it is in and when it was earned and became payable — never the sale or customer behind it. With groupBy affiliate, payout, status or month it returns a count and dollar total per group instead. Totals (count, amount and a per-status breakdown) are always included.