Merchant API launched Order Tracking and Issue Resolution sub-APIs and raised page size to 1,000

May 2025 updates added the Order tracking sub-API (shipping estimates and fast-shipping listings), the Issue resolution sub-API (diagnostics and support actions as in the Merchant Center UI), OmnichannelSettings, LfpProviders, GbpAccounts and OnlineReturnPolicy resources, a ProductsUpdate method for partial product updates, and increased maximum pageSize from 250 to 1,000.

Month-level date from Google's latest-updates page. Also announced: future deprecation of the channel field for data sources and products, and a normalized clickPotentialRank (1-1000) in the productView report from around July 1, 2025.