On November 2, 2026, Google confirmed via Google Ads API v26.1 that Performance Max (PMax) campaigns now support campaign-level household income exclusions across all placements—Search, Shopping, YouTube, Display, Gmail, and Discover. Arriving right after Google’s Channel Prioritization rollout (which lets advertisers cap Performance Max Search Partner spend at 0%) and Google’s updated 7-day Smart Bidding learning documentation, ecommerce operators finally have concrete levers to stop PMax from burning Q4 budget on low-converting demographics and junk partner sites.
When paired with Kopa (kopa.ai)—which separates Brand from Non-Brand traffic, rescues zero-impression products, blocks 140 mobile app categories, and catches wasted search terms before $45 is burned—these November 2026 controls turn Performance Max from an unaccountable black box into a disciplined acquisition channel.
New Google PMax & Smart Bidding controls (October–November 2026)
| Control / Update | Availability & API support | What it changes in your account | When ecommerce stores should use it |
|---|---|---|---|
| PMax Household Income Exclusions | Rolling out in UI; live in Google Ads API v26.1 (Nov 2, 2026) | Excludes specific tiers (Top 10%, 11–20%, 21–30%, 31–40%, 41–50%, Lower 50%, Unknown) across all PMax inventory | High-AOV stores ($200+) excluding non-converting lower tiers, or value stores excluding mismatched segments (never exclude "Unknown") |
| Channel Prioritization & 0% Search Partners | Rolling out globally since Oct 14–16, 2026 | Marks channels as High or Low priority; once PMax Search Partners is marked Low priority, spend can be capped at 0% | Every store where Search Partner sites dilute conversion rate and inflate fake click volume |
| Smart Bidding 7-Day Learning Cap | Live in official Google Ads Help docs (Oct 21, 2026) | Confirms budget, tROAS, and tCPA edits on established campaigns scale bids proportionally without triggering Learning status; caps any Learning state at 7 days max | Adjusting daily budgets and ROAS targets ahead of Black Friday (set tROAS before turning on Promotion Mode, which locks tROAS edits) |
| Smart Bidding Exploration for Shopping & PMax | Expanded Oct 26, 2026 (5% to 30% ROAS tolerance) | Widens query matching to probe new converting search categories within a configurable ROAS tolerance | Only after Brand vs. Non-Brand is split and negative keyword lists are locked |
| Customer Lifecycle High-Value Mode & Multipliers | Rolling out since Oct 22, 2026 | Brings New Customer High Value mode to Shopping plus 1.1x–5x percentage conversion multipliers | Stores with clear repeat-purchase LTV data and verified Customer Match lists |
How to configure PMax Household Income Exclusions without throttling holiday reach
For years, media buyers could exclude household income brackets in standard Search campaigns, while Performance Max forced a one-size-fits-all demographic mix. With API v26.1 (CampaignCriterion negative income_range) and the rolling UI update under Campaigns > Demographics > Household Income, you can now exclude specific income brackets at the PMax campaign level.
Before toggling exclusions on before Black Friday, apply three operator rules:
- Audit 90 days of historical Household Income conversion data first: Pull your PMax demographic breakdown sorted by cost and ROAS. Only exclude a tier (such as Lower 50% for a luxury home goods store with a $450 average order value) if 90-day data proves high spend with below-break-even contribution margin.
- Never exclude the "Unknown" household income bucket: Google's income tiers are probabilistic estimates. A large share of high-intent mobile and privacy-protected shoppers fall into the Unknown bucket. Excluding Unknown before Cyber Week will severely throttle your Shopping and Search impression share.
- Layer one exclusion at a time: Even though Google's October 21 Smart Bidding documentation confirms that targeting adjustments do not trigger a formal "Learning" status reset, removing a large demographic slice shifts auction clearing prices immediately.
Setting Performance Max Search Partners to 0% with Channel Prioritization
One of the most frequent budget leaks uncovered in Kopa's 8-Area Google Ads Account Audit is wasted spend on low-quality Search Partner sites and parked domains.
Under Google's new Channel Prioritization settings:
- Designate your core converting channels as High priority so Google funds them first within your Target ROAS or Target CPA.
- Designate Search Partners as Low priority, and set the Search Partner spend limit to 0% (confirmed by Google Ads Liaison Ginny Marvin in mid-October 2026).
- For standard Search campaigns that still have the Display Network toggled on, note that Google will remove the legacy Display allocation in February 2027—switch Display off on bottom-of-funnel Search campaigns so Search budget stays on real search queries.
Why PMax controls still fail without Brand Separation and Zero-Impression Product Rescue
Demographic exclusions and channel caps stop peripheral waste, but they do not fix the two biggest structural flaws inside Performance Max:
- Brand cannibalization: Left unguarded, PMax spends up to 80% of its budget capturing shoppers who were already typing your exact brand name into Google. Use Kopa's Brand vs. Non-Brand Split to isolate branded demand into its own campaign so cold PMax and Shopping campaigns must prove real new-customer ROAS.
- The 80/5 product concentration trap: PMax routinely funnels 80% of spend into 5% of your products, leaving high-margin, in-stock items with zero clicks. Kopa's Zero-Impression Product Rescue cross-checks live inventory, gross margin (COGS), and Google Keyword Planner volume to launch dedicated rescue campaigns for neglected winners.
What good looks like
- Household income exclusions in PMax are backed by 90-day ROAS and margin data, and the "Unknown" income tier is always kept enabled.
- Search Partners are set to Low priority (or 0% cap in PMax) whenever partner conversion rates lag Google Search.
- Baseline Target ROAS is set before activating Google's Promotion Mode (which locks tROAS edits while active).
- Brand terms are excluded from cold PMax and Non-Brand Search campaigns, and zero-impression high-margin products are isolated into dedicated rescue campaigns.
- Live search terms are monitored every minute by Kopa so irrelevant queries are blocked before $38 to $45 is wasted.