How is Performance Max for omnichannel goals different from Smart Shopping Campaigns (SSC)?

Performance Max (PMax) for omnichannel goals significantly expands upon Smart Shopping Campaigns (SSC). PMax allows advertisers to align their marketing objectives directly with broader business goals, encompassing both online and in-store sales, which SSC did not explicitly facilitate. While SSC focused primarily on product sales through Shopping ads, PMax integrates a wider range of marketing objectives. Additionally, PMax leverages the same core inventory as SSC (Shopping ads) but extends reach across all Google channels, including YouTube In-Stream, Search Text Ads, Display, Discover, and Gmail. This broader inventory and format variety allows for more comprehensive customer engagement across the entire Google ecosystem, whereas SSC was limited to Shopping and some Display inventory. The option about Smart Bidding is incorrect because both PMax and SSC utilize Smart Bidding. The option about product-specific formats is too narrow; PMax offers a wider range of formats beyond just product-specific ones.