2026 spec added handling_cutoff_time, minimum_order_value and loyalty sub-attributes for shipping

The 2026 product data specification update added product-level handling cutoff time [handling_cutoff_time] and minimum order value [minimum_order_value] attributes and new loyalty program label [loyalty_program_label] and loyalty tier label [loyalty_tier_label] sub-attributes of shipping [shipping] so merchants can express loyalty shipping benefits per product.

Effective immediately on April 14, 2026. The update also stated Google will deprecate the energy efficiency class attributes in favor of [certification] to comply with updated EU labelling rules.