These 15 red flags are the most common problems we find when auditing Google Ads accounts. They're organized roughly by how much money they typically waste, starting with the most expensive ones.
Tracking and Data Red Flags (1-4)
1. Multiple Primary Conversion Actions for the Same Event
This one is probably the single most costly red flag, and it's surprisingly common. You have two (or more) conversion actions both marked as "Primary" for the same event, like a purchase or form submission. Every sale gets counted twice. Your reported CPA is half the real number.
The fix takes 2 minutes: go to Tools > Conversions, find the duplicate, and change it to "Secondary." But the damage from running like this for months can be significant, because every automated bid strategy was making decisions based on inflated data.
2. Conversion Actions With "No Recent Conversions" Status
If a conversion action shows "No recent conversions" and you know people are converting, something broke. This happens more often than you'd think, especially after website redesigns, CMS migrations, or when someone updates a tag manager without checking ad tracking.
The result: your campaigns are running blind. Smart Bidding has no signal to learn from, so it's essentially guessing where to spend your money.
3. Conversion Lag Over 7 Days With Short Attribution Windows
Check your time-to-conversion report. If 30% of your conversions happen after day 7, but your attribution window is set to 7 days, you're systematically undercounting results. Your campaigns look worse than they actually are, and the algorithm underinvests because it thinks performance is poor.
4. Google Analytics and Google Ads Conversion Numbers Don't Match
Some gap between GA4 and Google Ads is normal because they use different attribution models. But if the numbers are off by more than 20-30%, something is wrong with one of the setups. A 2x difference almost always means duplicate tracking on one side or missing tracking on the other.
Campaign Structure Red Flags (5-8)
5. One Campaign Running Everything
This is the "set it and forget it" structure. One campaign, a handful of ad groups, branded and non-branded keywords mixed together. It makes budget management impossible because Google decides how to split the spend, and it almost always leans toward the easiest conversions (branded).
6. Performance Max and Search Campaigns Competing for the Same Keywords
PMax campaigns will cannibalize your Search campaigns. Google says PMax takes priority for queries that match, but in practice the behavior is inconsistent. If you're running both, check the "Insights" tab on your PMax campaign to see which search categories it's targeting. If those overlap with your Search campaigns, you have a conflict.
7. Too Many Campaigns With Not Enough Budget
Having 12 campaigns each spending $15/day is worse than having 4 campaigns each spending $45/day. Each campaign needs enough data to make smart bidding decisions. A campaign with 2 conversions per week doesn't have enough signal for any automated bid strategy to function well.
8. No Campaign Segmentation by Match Type or Intent
Broad match, phrase match, and exact match keywords behave very differently. Broad match captures more volume but at lower intent. If you're mixing all match types in the same ad group, you can't control how budget flows between high-intent and low-intent queries. Separating them (or at least being deliberate about the mix) gives you better control.
Search Terms and Keywords Red Flags (9-11)
9. No Negative Keyword Lists
This is a big one. If you go to Tools > Shared Library > Negative Keyword Lists and it's empty, your account is probably paying for hundreds of irrelevant clicks per month. Informational queries, competitor names, job searches, "free" and "DIY" queries all eat budget without converting.
Building a baseline negative keyword list takes about 20 minutes and can save 15-25% of search spend. Check out our guide to finding wasted ad spend for the process.
10. Search Terms Haven't Been Reviewed in 30+ Days
Google's broad match keeps expanding what it considers a relevant query. Terms that didn't trigger your ads last month might be triggering them now. If nobody is reviewing search terms at least every two weeks, bad queries accumulate. On a $10K/month account, a month of unreviewed search terms can easily waste $1,000-2,000.
11. More Than 30% of Spend Going to Unknown Search Terms
Google has been hiding more search terms data over the years. But if you're seeing "Other search terms" taking a huge chunk of your spend, it usually means your campaigns are running on very broad targeting. Tightening match types or adding more negatives can bring this ratio down.
Bidding and Budget Red Flags (12-14)
12. Target CPA or ROAS Set Unrealistically Low/High
If your trailing 30-day CPA is $50 and your target CPA is set to $25, the algorithm is going to choke. It will dramatically reduce impressions because it can't find conversions at that price point. This looks like a campaign that "stopped spending" but the real issue is an impossible target.
Set targets at or slightly below your actual recent performance, then gradually tighten. If you want a $25 CPA, work toward it over time instead of setting it and hoping.
13. "Limited by Budget" on Your Best Campaigns
If your highest-ROAS campaign is showing "Limited by budget" while another campaign with half the ROAS runs uncapped, you're leaving money on the table. This is probably the easiest win in any account: shift budget from underperformers to campaigns that are actually constrained.
14. Manual CPC With No Recent Bid Adjustments
Manual CPC isn't inherently wrong. But if you're running Manual CPC and haven't touched the bids in 3 months, the bids are probably stale. Auction dynamics change constantly, and a bid that was competitive in January might be losing auctions in March. Either switch to automated bidding or commit to reviewing bids at least weekly.
Ad Copy and Landing Page Red Flags (15)
15. Same Ad Copy Running Unchanged for 6+ Months
Ad fatigue is real. Even if an ad was performing well when you wrote it, engagement tends to drop over time as the same audience sees the same message. Your click-through rate slowly declines, your Quality Score drops, and your CPCs creep up.
Refresh ad copy every 2-3 months. You don't need to reinvent the messaging, just test new headline variations and description angles. Keep what works, replace what's fatigued.
How Many Red Flags Are Too Many?
Honestly, almost every account we audit has at least 2-3 of these issues. That's normal. The question is how severe they are and how much they're costing you.
If you counted 5+ red flags from this list, your account is probably wasting a significant percentage of spend. The priority is to fix them in order of impact:
- Tracking issues first (red flags 1-4)
- Search terms and negative keywords (9-11)
- Budget allocation (12-13)
- Structure and bidding (5-8, 14)
- Ad copy (15)
If you want to know exactly how many of these apply to your account without digging through everything manually, our 30-minute audit checklist covers the fastest way to check. Or you can run our free automated audit and get a scored breakdown in about 60 seconds.
Frequently Asked Questions
It varies a lot, but based on what we see in audits, accounts with 3 or more of these red flags are typically wasting 20-40% of their budget. Some accounts with severe issues (like broken tracking or no negative keywords) waste even more.
Start with conversion tracking and search terms. These two areas alone account for the majority of wasted spend. You can check both in under 10 minutes using the Google Ads interface.
No. Fix them in order of impact: conversion tracking first, then search terms and negative keywords, then bid strategies, then everything else. Making too many changes at once makes it hard to tell what worked.
Some of them, but be selective. Google's recommendations often push toward higher spend or broader targeting, which isn't always in your interest. Accept recommendations that add extensions or fix tracking. Be cautious about recommendations to broaden match types or increase budgets.
How Many Red Flags Does Your Account Have?
COREPPC's free audit checks your Google Ads account across 54 data points. Get your score and see exactly which issues are costing you money.
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