TL;DR
Performance Max blends Search, Shopping, Display, YouTube, Discover, Gmail, and Maps into one automated campaign, which is exactly why it needs its own audit instead of a generic Google Ads checklist. Below: 38 checkpoints across 8 groups, each with where to check it in the interface and the red flag that means something is wrong.
38
checkpoints
8
checklist groups
50
search themes / asset group
10,000
negative keywords / campaign (2026 cap)
Quick Answer
What is a Performance Max audit and how is it different from a general Google Ads audit?
A Performance Max audit checks the controls specific to PMax — asset group structure, feed quality, negative keywords, brand exclusions, audience signals, and channel-level reporting — rather than the keyword- and ad-level checks a standard Search audit runs. PMax used to be a black box with almost nothing to verify beyond "is Ad Strength good"; 2026 changes (negative keywords up to 10,000 per campaign, per-channel reporting, brand exclusions, data exclusions) turned it into a campaign type you can actually audit properly.
Why Performance Max needs its own audit
If you haven't read the full mechanics yet — structure, asset groups, bidding, when PMax makes sense versus standard Shopping — start with the Performance Max guide. That post covers a short audit summary; this one is the full version, with the where-to-check and the red flag spelled out for every point.
A standard Search audit leans on keyword-level data: Quality Score, Search Terms Report, match types, bid adjustments per keyword. Performance Max reports most of that in aggregate — you don't get a per-keyword view, and a meaningful slice of the automation (how budget splits across channels, which audience signal drove which conversion) has historically been a black box. That gap is why the general Google Ads audit checklist covers PMax in a single line — treat each asset group like an ad group, one theme, not a dumping ground — and points here for the rest. If you haven't run a full account audit yet, do that first; this post assumes PMax already exists inside a reasonably healthy account and goes deep on just that campaign type.
What changed the audit itself in 2026: negative keywords moved from a 100-per-campaign cap to 10,000 per campaign, channel-level reporting shipped in January 2026 so you can finally see the Search/Shopping/Display/YouTube split, and brand exclusions plus data exclusions gave PMax targeting controls it never had before. Half the checkpoints below didn't exist as checkpoints two years ago.
Group 1: Campaign setup & structure
Structure problems compound — a badly split asset group or a stray URL expansion setting quietly wastes budget for months before anyone notices, because PMax doesn't surface it the way a keyword-level report would.
Asset groups are thematically consistent
Where: Asset groups tab
Red flag: assets for unrelated product categories crammed into one group
Asset group count matches catalog and business size
Where: Asset groups tab
Red flag: one asset group covering 50+ SKUs, or 10+ groups running on a small budget
URL expansion reviewed as a deliberate choice
Where: Campaign settings → URL expansion
Red flag: left on without anyone having decided that on purpose — traffic lands on pages you never planned for
Final URLs per asset group are accurate and redirect-free
Where: Asset group → Final URL
Red flag: a generic homepage URL instead of the actual product or category page
Campaign goal and conversion goal set correctly
Where: Campaign settings → Goal
Red flag: the campaign is optimizing toward a secondary action instead of the one that actually matters
Group 2: Measurement & conversion tracking
Every audit starts here for a reason: PMax bids on whatever conversion data you feed it, so a tracking gap doesn't just hide a problem, it actively points the algorithm at the wrong target. If you haven't verified the fundamentals — tag firing, Enhanced Conversions, primary vs. secondary goals — do that first with the Conversion Tracking guide. What follows is specific to what PMax does with that data.
Primary conversion action clearly marked, secondaries excluded from optimization
Where: Goals → Conversions
Red flag: a "button click" or "page view" set as primary
Conversion value accurate for Target ROAS (real revenue, not a flat number)
Where: Goals → Conversions → Value settings
Red flag: a fixed value applied to every conversion on a store with variable pricing
Enhanced conversions turned on
Where: Goals → Conversions → Enhanced conversions status
Red flag: still off, especially on an account that runs on Smart Bidding for most of its budget
Offline conversion import connected for B2B (won deal / SQL from the CRM)
Where: Goals → Conversions → Import
Red flag: PMax optimizing purely on form-fill volume with no lead-quality signal feeding back — see the offline conversion import guide if this one applies to you
Conversion window matches the sales cycle
Where: Conversion action settings — 30 days by default, 60-90 days for B2B
Red flag: the default window on a long B2B cycle, quietly dropping late conversions from the data PMax bids on
Group 3: Asset groups & creative
Asset ratings and refresh cadence are the two things I see skipped most. Ad Strength gets checked once at launch and never again — meanwhile the top-rated asset from six months ago is stale and the algorithm is still leaning on it.
Asset performance ratings reviewed per group (Low / Good / Best)
Where: Asset group → Asset ratings
Red flag: a "Low" rated asset still live after 30+ days
Every asset slot filled — minimum 3-5 headlines, 2-4 descriptions, all three image ratios, video
Where: Asset group detail
Red flag: an empty portrait-image or video slot
Video assets uploaded by hand where you have the material, not left to auto-generation
Where: Asset group → Videos — up to 15 videos per group, raised from 5 in the 2026 Google Ads Editor update
Red flag: zero uploaded videos, everything auto-generated from static images
Asset set testing running wherever there's enough traffic to read a result
Where: Experiments tab
Red flag: the same creative set untouched for 6+ months, never tested against an alternative
Creative refreshed on a cycle, minimum every 2-3 months
Where: Asset group → last edit date
Red flag: assets unchanged for 6+ months
Group 4: Feed quality (retail PMax)
Skip this group if you're not eCommerce
This entire section applies only to Shopping-backed Performance Max — a Merchant Center feed driving the campaign. Lead-gen or B2B PMax with no product feed can skip straight to Group 5.
Feed problems in PMax are worse than in standard Shopping, because a bad title or a missing GTIN doesn't just hurt one campaign — it caps eligibility for every Shopping-backed surface PMax touches. For the full feed methodology, see the Google Shopping guide.
Titles are optimized — brand, type, and attributes, not generic
Where: Merchant Center → Diagnostics
Red flag: titles under 5 words or missing the brand name entirely
GTIN/MPN present wherever applicable
Where: Merchant Center feed
Red flag: 10%+ of branded products missing a GTIN
Custom labels (0-4) mapped to an actual strategy — margin tier, season, performance
Where: Feed rules or source feed
Red flag: custom labels sitting empty, or populated but never used in listing groups
Listing groups segmented by custom label or product type
Where: Asset group → Listing groups
Red flag: a single listing group for the entire catalog, or the opposite — hundreds of listing groups adding granularity nobody acts on
Feed health checked — availability, price parity with the live site, image quality
Where: Merchant Center → Product status
Red flag: disapproved or pending items above 5% of the catalog
Get a second opinion
Feed and negative-keyword issues are the two categories I find most often on accounts that've never had a PMax-specific audit. I go through all 38 checkpoints personally as part of the Deep Audit + Action Plan. From $500.
See what the audit covers →Group 5: Brand safety & exclusions
This is the group with the sharpest 2026 upgrade. The campaign-level negative keyword cap jumping to 10,000 and the arrival of data/audience exclusions are genuinely new — PMax didn't give you that level of control before. Account-level negatives and brand exclusions are older, more mature controls, and most accounts I audit still haven't touched a single one of the five checks below since they were first set up — or ever.
Negative keywords set at the account level
Where: Account-level negative keyword lists
Red flag: no list exists, or it hasn't been touched in 60+ days
Negative keywords set at the campaign level
Where: Campaign → Negative keywords — up to 10,000 per campaign, applying to the Search and Shopping inventory inside PMax (not Display, YouTube, Gmail, or Discover)
Red flag: zero campaign-level negatives on a PMax campaign with 30+ days of spend history
Brand exclusions configured where relevant
Where: Campaign settings → Brand exclusions — your own brand if PMax shouldn't be bidding on it, or competitor brand terms
Red flag: PMax bidding on brand terms a Search brand campaign already covers, with no deliberate reason for the overlap
Data/audience exclusions applied for existing customers when the goal is acquisition
Where: Audience signals → Exclusions — see Google's guide to PMax exclusions
Red flag: budget going toward a Customer Match list of existing buyers when the stated goal is new-customer acquisition
Placement and brand-safety settings reviewed for where ads show outside Search/Shopping
Where: Reports → Predefined reports → Performance Max campaigns placement
Red flag: impressions next to unsuitable content with no exclusion list in place
Red flag for the whole group: if you can't remember the last time you opened Brand exclusions or Negative keywords for this campaign, that's the answer — go check now, both take under 10 minutes.
Group 6: Channels & reporting
Before January 2026, this group didn't exist — you simply couldn't see the Search/Shopping/Display/YouTube split inside a PMax campaign. Google announced channel-level reporting that month, and it's the single biggest visibility upgrade PMax has had since launch.
Channel-level report reviewed (Search, Search Partners, Display, YouTube, Discover, Gmail, Maps)
Where: Insights → Channel performance
Red flag: 30%+ of budget going to Display/YouTube with nobody having decided that on purpose
Channel spend trend tracked monthly, not checked once and forgotten
Where: Channel performance → historical view
Red flag: never opened since the feature launched
Asset-group- and asset-level channel breakdowns used to diagnose weak spots
Where: Channel performance drill-down
Red flag: reacting to an aggregate CPA/ROAS number without ever seeing which channel is dragging it down
Waze inventory relevance checked for store-goal campaigns with a physical location
Where: Store goals settings — Waze inventory is US-only at the time of writing, per Google's rollout notes, which say expansion beyond the US is planned for 2026
Red flag: a US store-goal campaign bidding to Store Visits, Store Sales, or Local Actions Directions that has never checked whether Waze inventory turned itself on and whether the assets showing there actually make sense
Group 7: Budget & bidding
None of this is PMax-exclusive on paper, but PMax makes bad bidding decisions harder to catch — a Target ROAS set too aggressively doesn't just underspend, it can quietly shift budget toward Display impressions that are easier to hit the target on but don't build the business.
Bid strategy matches the campaign's stage
Where: Campaign settings → Bidding — Maximize Conversions to start, Target CPA/ROAS after 4-6 weeks of data
Red flag: Target CPA/ROAS switched on day one with no conversion history behind it
Target CPA/ROAS is realistic — based on historical performance, not a wish
Where: Bidding → Target history
Red flag: a target 50%+ more aggressive than the current baseline
Target changes made gradually — 10-20% at a time, at least 7-10 days apart
Where: Bid strategy change log
Red flag: frequent large target swings inside a short window
Minimum conversion volume in place before leaning on Smart Bidding
Where: Conversions (last 30 days) — Google's own recommendation is roughly 30 conversions/30 days for Target CPA and roughly 50 for Target ROAS
Red flag: Target ROAS running on under 20 conversions a month
Budget isn't the ceiling on your best-performing campaign
Where: Campaign → Budget status
Red flag: "Limited by budget" on the profitable campaign while a weaker one spends its full budget every day
Group 8: Search themes & audience signals
Signals are the input PMax uses to start smart instead of cold. Skipping this group is the most common way I see accounts leave PMax to guess.
Search themes filled in where the campaign has asset groups
Where: Asset group → Search themes — Google raised the cap to 50 per asset group in 2025, up from 25. Search themes live at the asset-group level, so a feed-only PMax campaign — pure Shopping feed, no asset groups — has none to fill in. That's expected, not a gap.
Red flag: empty on a lead-gen or non-retail PMax campaign that does have asset groups and would benefit from them
Audience signals added and kept current
Where: Asset group → Audience signals — Customer Match, website visitors, in-market segments
Red flag: zero signals, the algorithm starting cold every time
First-party data prioritized ahead of generic in-market audiences
Where: Audience signals composition — email lists and site visitors first
Red flag: only generic in-market audiences in the signal, no Customer Match list at all
Insights tab checked regularly for audience and search-category performance
Where: Insights → Audience insights
Red flag: never opened since launch
How often to run this checklist
Quarterly deep pass + monthly quick check
Run all 38 points once a quarter. Between deep passes, a monthly 10-minute check covers the items that drift fastest: negative keywords (21-22), channel report (26), budget status (34), asset ratings (11), and brand exclusions (23). Same cadence as the general account audit, for consistency across your whole review process.
Frequently Asked Questions About Performance Max Audits
Do search themes apply to feed-only Performance Max campaigns?▼
How many listing groups is too many?▼
What changed in Performance Max reporting in 2026?▼
How is a PMax audit different from auditing a Search campaign?▼
How often should I audit a Performance Max campaign?▼
Conclusion
Performance Max earned its black-box reputation honestly, but most of that reputation is two years out of date. Negative keywords, brand exclusions, data exclusions, and channel-level reporting turned it into a campaign type with real, checkable controls — the account that hasn't revisited any of the 38 points above since PMax launched is running on 2023 assumptions about a 2026 product.
Want a second set of eyes on your PMax account?
The Deep Audit + Action Plan runs this checklist and the full 100+ point account audit together, with a prioritized action plan you can hand to whoever manages the account. From $500.
See what the audit coversPrefer to run it yourself first? Grab the free 105-point account audit checklist (.xlsx) and use this post alongside it for the PMax-specific detail.
Related Guides
Performance Max Campaigns: Complete Guide
Structure, asset groups, bidding, and when PMax makes sense
Google Ads Audit Checklist
100+ points for a full, account-wide review
Google Shopping Campaigns Guide
Feed optimization, structure, and bidding for Shopping
Conversion Tracking for Google Ads
GTM, GA4, and Google Ads tag setup, done right
Performance Max Management
Ongoing PMax setup and optimization as a service
Negative Keywords Strategy
Match types, organization, and process for Search and PMax
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