Tray orders summary

Echo of the requested dimension. Present only when groupBy was sent.

Present only when groupBy was sent. Top-20 groups ordered by totalRevenue desc, plus an '(outros)' row aggregating the remainder when one exists. Null/blank dimension values are bucketed as '(sem valor)'. The '(sem valor)' group, when it has rows, is always returned as its own explicit group — even outside the top-20 — and its numbers are excluded from '(outros)'. On order-grain dimensions (payment_method, utm_source, utm_campaign, source_name) the '(outros)' row is complete — its uniqueCustomers is a clamped lower-bound approximation (distinct counts do not subtract across groups). For groupBy=product (item grain) the '(outros)' row carries ONLY key and totalRevenue: totalOrders, avgTicket and uniqueCustomers are null, because per-product order counts overlap (one order counts once per product it contains) and the remainder's counts cannot be derived; the '(sem valor)' group at item grain is a normal group with full metrics.