Meta Andromeda Update: What We're Seeing 30 Days In
When we published our original Andromeda breakdown, the rollout was just hitting. Thirty days later, the picture is clearer.
We've been watching patterns across CPG and ecommerce accounts closely. What Andromeda changed isn't subtle. It shows up in delivery data, comment thread performance, and creative burnout rates. Here's what the last 30 days actually look like.
What the Data Shows 30 Days After Andromeda
Confect analyzed 3,014 eCommerce advertisers across $834 million in ad spend and 115.7 billion impressions during Andromeda's full rollout period. The topline numbers are telling.
The average decline masks a wider split. Mid-sized advertisers and accounts built around catalog-first creative improved. Large accounts running primarily static creative dropped from 8.7 to 8.0 average ROAS. Affordable price tier products saw a 35% ROAS collapse. Mid-priced product accounts actually went up.
The accounts absorbing the biggest losses share the same profile: heavy static single-image spend, thin creative variety, and no catalog feed active. The accounts winning share the opposite.
What Spam Comments Are Actually Doing to Your ROAS
This one surprised us the first time we saw it surface across accounts. Spam in your ad comment threads isn't just noise. It's a performance signal Andromeda reads.
When a prospect hits your ad and sees spam in the first three visible comments, they scroll past. CTR drops. And because Andromeda uses engagement quality signals to decide which ads to keep serving, that CTR drop gets read as poor creative-audience fit, even when the creative is performing fine everywhere else.
FeedGuardians' 2026 benchmarks across high-spend Meta accounts put the average harm rate at 18% of all ad comments, spread across scam links (34%), competitor bait (21%), toxicity (19%), and bot spam (14%). For beauty, fitness, and DTC food brands that rate runs higher at 21-26%.
The fix is not replying to spam. Replies signal engagement but don't hide content from other users. The right move: hide comments (not delete, since hidden comments preserve your engagement count) and configure keyword filters in Ads Manager to auto-hide common phrases before they reach your threads.
Brands running comment moderation alongside Andromeda-compatible creative have seen 40-52% ROAS lifts in high-harm-rate categories (26%+ harm rates). Even lower-baseline accounts at 12% harm rate showed 14-22% ROAS improvement from systematic moderation. Comment hygiene is now a paid performance function, not a community management task.
Why Catalog Ads Are Pulling Away from the Pack
Andromeda's visual matching model pattern-matches product signals better than static creative because catalog ads give it exactly what it needs: product images, price, availability, and feed-level signals it can match to high-intent users based on their browsing behavior.
| Ad Format | ROAS Change (vs. pre-Andromeda) | CPA Change | Andromeda Signal Strength |
|---|---|---|---|
| Catalog / Dynamic Product Ads | +23% vs. static | -37% CPA | High: feed-level product + intent signals |
| Collection Ads | Stable (avg 9.2 ROAS) | Stable | High: product context + video hook combined |
| Carousel | Flat | Flat | Medium: varied assets, no feed-level signals |
| Single Image / Video | -17% ROAS | -17% to -35% | Low: limited visual diversity for AI matching |
Source: Confect.io analysis of 1 million ad creatives, $834M in spend across 3,014 advertisers.
The brands that restructured toward catalog-first in Q1 are seeing it in account-level ROAS. The ones still running primarily static single-image ads are absorbing the 17% average decline. This is one of the clearest structural format shifts we've seen in paid social in years.
Creative Fatigue Is Hitting Sooner Than It Used To
One consistent pattern across accounts: creative fatigue is arriving earlier. Andromeda cycles through your ad set's creative more aggressively as it learns. Assets that had a three-week shelf life under the old system are burning out in two weeks or less.
Top-performing advertisers in Confect's dataset maintain 5 or more active creative variants per ad set. Not five identical formats with different colors. Five meaningfully different approaches that give Andromeda something to test and differentiate, so it can find the best creative-audience pairing for each.
Andromeda doesn't change the fundamentals. It raises the bar on discipline.
The second differentiator from top performers: multiple placement formats. Single-placement campaigns see Andromeda running the same creative into the same surfaces repeatedly. Multi-placement setups give the algorithm more distribution optionality, which shows up as higher ROAS in the aggregate data.
How to Adapt: Five Steps That Are Working Right Now
Audit your comment threads this week
Pull your top 5 spending ads and check the first three visible comments. If any are spam, the CTR impact is active right now. Hide them (not delete), then set up keyword filters in Ads Manager under Page Settings. This takes about 30 minutes and has a direct effect on delivery quality.
Shift budget toward catalog formats
If you don't have a catalog feed active, set one up. If you do, run a dedicated catalog ad set against your best-performing static creative for 7-10 days. The 23% ROAS advantage is consistent enough across 3,014 advertisers to be structural, not random variance.
Build to 5 meaningful creative variants
Five variants means five different angles, not five color swaps. Test UGC vs. product-forward vs. founder-led vs. social proof vs. problem-solution. Each needs to signal something meaningfully different to Andromeda's visual layer so it can find the right audience for each.
Treat creative refresh as a weekly process
Monthly creative reviews don't work anymore. With Andromeda cycling through creative faster, you need a weekly check on frequency curves. When frequency climbs above 2.5 and ROAS drops below your target threshold at the same time, that's the rotation signal.
Standardize your attribution windows
Andromeda's faster optimization cycles make attribution window inconsistencies more damaging than before. If campaigns are running on different windows (some 7-day click, some 1-day view), the signals Andromeda reads are misaligned. Standardize before making ROAS comparisons.
What Andromeda Hasn't Changed
A few things to be clear about. Andromeda is not a performance multiplier that works regardless of fundamentals. It makes good creative perform better and accelerates the death of weak creative. It doesn't fix broken landing pages, weak offers, or attribution setups already producing bad data.
The basics are the same: product-market fit, a relevant offer, a fast-loading destination page. Andromeda evaluates and acts on those signals faster and with more precision. The penalty for ignoring them is just steeper now.
If ROAS compression continues after addressing catalog format, comment hygiene, and creative depth, the next layer to look at is Meta retargeting setup and your CPG shopper marketing strategy. The algorithm is one layer of the equation.
For a full breakdown of how Andromeda changed the ads retrieval process and the structural account implications, see our original Meta Andromeda explainer. For CPG channel strategy beyond Meta, the CPG retail marketing playbook covers the full cross-channel picture.
Does replying to spam comments hurt Meta ad performance in 2026?
Yes. Andromeda reads engagement quality signals at the delivery level, and spam visible in the first three comments causes CTR to drop 15-28% according to FeedGuardians' 2026 benchmarks. Replying to spam doesn't hide it from other users. The correct approach is to hide comments (not delete, since hidden comments still count toward your engagement total) and configure keyword filters in Ads Manager to auto-hide common spam phrases.
What Meta ad formats are performing best under Andromeda in 2026?
Catalog Ads (Dynamic Product Ads) are significantly outperforming static creative. Confect's analysis of $834 million in ad spend across 3,014 advertisers found Catalog Ads deliver 23% higher ROAS and 37% lower CPA compared to single image/video ads. Collection ads are holding stable at around 9.2 ROAS. Static single-image formats have seen the steepest average ROAS declines (-17%).
How often should I refresh Meta ad creative in 2026?
More often than before. Andromeda cycles through creative more aggressively as it learns, accelerating fatigue timelines. Assets with a 3-week shelf life under the old model are burning out in 2 weeks or less. Top-performing advertisers maintain 5+ active creative variants per ad set and check frequency curves weekly. The rotation signal is frequency above 2.5 combined with a drop below your ROAS target threshold.
Did Meta's Andromeda update hurt all advertisers equally?
No. The impact split significantly by format, account size, and price tier. Mid-sized advertisers running catalog-first creative improved. Large accounts running primarily static formats dropped from 8.7 to 8.0 average ROAS. Affordable price tier products saw a 35% ROAS decline. Mid-priced product accounts improved. The 7% average ROAS decline masks a wide distribution, with catalog-forward accounts gaining and format-laggards absorbing the losses.
What does Andromeda mean for CPG brands advertising on Meta?
For CPG brands, Andromeda amplifies the advantage of product-rich catalog feeds. Brands with strong product imagery, clean feed data, and active catalog campaigns are seeing ROAS hold or improve. CPG brands also typically have product variety that supports multiple creative angles (UGC, recipe-forward, lifestyle, ingredient-led), which feeds Andromeda's need for variant depth. Brands running 1-2 static assets per campaign are leaving significant efficiency on the table.
Not sure how your Meta account is set up for Andromeda?
We audit CPG and ecommerce accounts against the full Andromeda readiness framework: comment hygiene, creative format mix, variant depth, and attribution settings. A diagnostic takes 48 hours.
Request a Free AuditLaunch into Success
Tell us a bit about yourself and your business. We are just one message away from the perfect partnership!