In the Intelligent Search APIs (GraphQL or REST), the spotPrice property from the object items.sellers.commertialOffer is wrong for items where the unitMultiplier is greater than 1.

The spotPrice should represent the cheapest payment method in its single installment option in order to show the "cash price", with a discount (if any), but in this case, it ends up returning the regular price for the item.

It does not happen for items where the multiplier is lower than 1 (fracioned items).

At the Intelligent Search's REST API or GraphQL, check the property for items in this specific scenario.

The right value for spotPrice can be retrieved from the Installments array inside the same commertialOffer object.