Free workflow
A larger pack can have a lower unit price but a higher checkout total. Give your agent separate answers for the product offer, the price per unit, and the costs that are still unknown.
Extract each supplied product page. Use an individual Offer price and currency, retaining its source pointer. Do not replace an individual price with an AggregateOffer lowPrice or choose a conditional member price without checking eligibility.
commerce.offer-extract · freeMap each individual offer price to the price field. Supply verified packCount, quantity and unit explicitly; package size is not inferred from a product title. For example, $8.99 for 500 g is $1.798 per 100 g, while $16.49 for 1 kg is $1.649 per 100 g. All prices must be in the same declared currency.
commerce.unit-price · freePass the selected whole-pack price as unitPrice, plus item count and explicit line and order discounts. Declare the currency decimal places and provide shipping, tax and fees as amounts or null when unknown. The example with two $16.49 bags, a $2 discount and $4.99 shipping has a known total of $35.97; unknown tax keeps the final total null.
commerce.price-components · freeAn exact unit-price comparison and a separately reconciled cart. The lowest unit price is not a recommendation about product quality or final delivered cost. These tools never place orders, convert currencies or calculate tax from local law.
These are separate free calls. Map fields explicitly; no automatic merchant changes.
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