Where each number comes from.
DataSourceUsed for
Stock per SKUREST API v6 · /products, /product/updated_sinceUnits on hand, per location
Goods receiptsREST API v6 · /inboundsDays in warehouse
Inbound forecastsREST API v6 · /inboundforecast/groupOpen purchase orders as the warehouse sees them
Order eventsREST API v6 · /orderevents/since_idOutbound velocity
ReturnsREST API v6 · /return/sinceReturned units