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historical_orders.amount was in cents while real_time_orders.amount was already in dollars. This mismatch caused a ~100x inflation in the ROAS metric in cpa_and_roas, triggering anomaly detection failures.
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Problem
The
historical_ordersmodel was outputting monetary amounts in cents, whilereal_time_orderswas already converting to dollars using thecents_to_dollars()macro. Since theordersmodel unions both viaUNION ALL, this created a unit mismatch in theamountcolumn.This propagated through
customer_conversions→attribution_touches→cpa_and_roas, inflating the RETURN_ON_ADVERTISING_SPEND metric by ~100x and triggering ongoing anomaly detection failures (74 consecutive failures since Oct 2025).Fix
historical_orders.sql: Applycents_to_dollars()to all monetary columns, matching the existing pattern inreal_time_orders.sql.real_time_orders.sql: Added clarifying comment — no logic changes.Related Incident
cpa_and_roas.RETURN_ON_ADVERTISING_SPENDCreated by:
maayan+172@elementary-data.com