Smart Shopping vs Performance Max: Key Differences Explained

Smart Shopping vs Performance Max, it’s a comparison every Google Ads advertiser has faced since 2022. Google fully replaced Smart Shopping campaigns with Performance Max that year, but the debate continues. Marketers still want to understand what changed, what stayed the same, and which approach actually delivers better results.

This guide breaks down both campaign types. It explains how they work, where they differ, and how advertisers can make informed decisions based on their goals. Whether someone managed Smart Shopping campaigns in the past or is evaluating Performance Max for the first time, this comparison covers everything they need to know.

Key Takeaways

  • Google replaced Smart Shopping with Performance Max in September 2022, making Performance Max the current standard for automated e-commerce campaigns.
  • Performance Max expands reach across six Google properties (Search, Display, YouTube, Discover, Gmail, and Maps) compared to Smart Shopping’s four channels.
  • Unlike Smart Shopping, Performance Max supports video ads, audience signals, and improved insights reporting for better campaign optimization.
  • Performance Max requires more creative inputs—text, images, and video assets—but delivers greater control through audience signals and asset groups.
  • E-commerce brands with strong creative assets, first-party data, and clear conversion goals will see the best results from Performance Max.
  • Standard Shopping campaigns remain a viable alternative for advertisers who need tighter control over bidding and search query targeting.

What Is Smart Shopping?

Smart Shopping was Google’s automated campaign type for e-commerce advertisers. It combined standard Shopping ads with remarketing display ads into one campaign. Google’s machine learning handled bidding, ad placement, and audience targeting automatically.

The campaign type launched in 2018 and quickly became popular among online retailers. Smart Shopping pulled product data from the Merchant Center feed and displayed ads across Google Search, Display Network, YouTube, and Gmail.

How Smart Shopping Worked

Advertisers set a daily budget and an optional target return on ad spend (ROAS). Google’s algorithm did the rest. It decided which products to show, where to place ads, and how much to bid for each auction.

Smart Shopping prioritized convenience. Advertisers didn’t need to create separate remarketing campaigns or manually adjust bids. The system optimized for conversion value by default.

Limitations of Smart Shopping

Smart Shopping had notable drawbacks. Advertisers received limited visibility into performance data. They couldn’t see which networks drove results or control audience exclusions effectively. The campaign type also didn’t support video assets or additional creative formats.

Google sunset Smart Shopping in September 2022. All existing campaigns migrated automatically to Performance Max.

What Is Performance Max?

Performance Max is Google’s most advanced automated campaign type. It runs ads across all Google properties from a single campaign: Search, Display, YouTube, Discover, Gmail, and Maps.

Google introduced Performance Max in 2021 and positioned it as the future of automated advertising. The campaign type uses AI to optimize bidding, creative combinations, and audience targeting in real time.

How Performance Max Works

Advertisers provide assets, headlines, descriptions, images, and videos. They also connect their Merchant Center feed for product listings. Google’s AI builds and tests ad combinations across channels to find what performs best.

Performance Max requires a conversion goal. Advertisers choose objectives like sales, leads, or website traffic. The system then optimizes toward those goals using signals from audience data, search intent, and user behavior.

Key Features of Performance Max

Performance Max offers several capabilities Smart Shopping lacked:

  • Audience signals: Advertisers can provide first-party data and custom segments to guide the algorithm.
  • Asset groups: Campaigns support multiple asset groups for different product categories or themes.
  • Video ads: YouTube inventory is fully integrated.
  • Insights reporting: Google now provides more data on search terms, audience segments, and asset performance.

Performance Max represents Google’s push toward full automation across its advertising ecosystem.

Smart Shopping vs Performance Max: Core Differences

The Smart Shopping vs Performance Max comparison comes down to reach, control, and features. Here’s how they stack up.

Inventory and Channel Access

Smart Shopping ran on four Google properties: Search, Display, YouTube, and Gmail. Performance Max adds Discover and Maps to that list. This expanded reach means ads can appear in more places where potential customers browse.

Creative Requirements

Smart Shopping used product feed data and basic remarketing assets. Performance Max demands more creative inputs. Advertisers need to supply text, images, and ideally video assets. The AI then mixes and matches these elements.

Audience Targeting

Smart Shopping offered minimal audience control. Advertisers couldn’t add audience signals or exclude specific segments easily. Performance Max introduces audience signals, optional inputs that help the AI understand who to target. These signals include customer lists, website visitors, and interest-based segments.

Reporting and Transparency

Smart Shopping frustrated many advertisers with its black-box reporting. Performance Max improves this with insights on top-performing search categories, audience breakdowns, and asset-level performance. It’s still not as granular as standard Search campaigns, but it’s a step forward.

Campaign Structure

Smart Shopping used a simpler structure with one product group per campaign. Performance Max uses asset groups, which allow advertisers to organize products and creatives by theme, brand, or category within a single campaign.

FeatureSmart ShoppingPerformance Max
ChannelsSearch, Display, YouTube, GmailAll six Google properties
Video supportNoYes
Audience signalsNoYes
Insights reportingLimitedExpanded
Creative requirementsMinimalText, images, video

The Smart Shopping vs Performance Max debate often centers on this trade-off: Performance Max offers more power but requires more advertiser input.

Which Campaign Type Should You Choose?

Since Smart Shopping no longer exists, advertisers don’t have a choice between the two. Performance Max is the current standard. But understanding when Performance Max works best, and when alternatives might suit better, matters.

When Performance Max Excels

Performance Max works well for e-commerce brands with strong creative assets and clear conversion goals. It’s particularly effective when:

  • The business has quality video content for YouTube ads
  • First-party customer data is available for audience signals
  • The advertiser wants broad reach across all Google channels
  • Conversion tracking is properly set up with accurate value data

When to Consider Alternatives

Performance Max isn’t ideal for every situation. Standard Shopping campaigns still exist and offer more control over bidding and search queries. Advertisers with tight budgets or niche products might prefer standard campaigns where they can monitor performance more closely.

Search campaigns remain valuable when specific keyword targeting matters. Performance Max casts a wide net, which can dilute spend across channels that don’t convert.

Making the Transition

Advertisers who ran Smart Shopping campaigns before September 2022 had their campaigns automatically converted. Most saw similar or improved results after the transition. Google’s recommendation is to let Performance Max run for at least six weeks before making major adjustments.

The key is providing the algorithm with quality inputs. Strong product feeds, compelling creative assets, and accurate conversion data give Performance Max the foundation it needs to perform.