Alright, let's have a little heart-to-heart. You're wasting money. I know it, and you know it. Right now, as you're reading this, one of your best-performing ads is probably taking a nosedive. The CTR is tanking, the cost per lead is skyrocketing, and it's burning your cash. You won't catch it until you do your weekly check-in, and by then, you've already wasted hundreds, maybe thousands, of dollars.
It's a dumb problem, and it needs a smart, simple solution. So, I'm going to give you one. I'm going to show you how to build an automated ad fatigue alerter in Google Sheets in the next 20 minutes. It's stupidly simple, and it will make you a better, more profitable marketer. Pay attention.
The Problem:
You're spending 3-4 hours every single week manually digging through your ad accounts, trying to spot creative fatigue. You're comparing date ranges, exporting CSVs, and making yourself dizzy looking at numbers. By the time you spot a loser, it's already done the damage. This manual process is slow, inefficient, and it's costing you a fortune.
The Hack:
We're going to build a simple, automated dashboard in Google Sheets that connects directly to your ad accounts. It will pull the data every morning before you even wake up, calculate the performance change for every single ad, and flag any ad that has dropped in performance by more than 15%. Then, it will send you an email alert so you can kill the loser before it wastes another dime.
Exactly How To Do It:
Step 1: Get the Right Tool Open a new Google Sheet. Go to Extensions > Add-ons > Get add-ons and search for "Supermetrics". Install it. Yes, there's a 14-day free trial, which is more than enough time to see how much money this saves you. This is the connector that will pull data from Facebook, Google, etc., directly into your sheet.
Step 2: Pull the Data Launch Supermetrics. Connect your Facebook Ads or Google Ads account. Now, set up a query to pull the following metrics:
•Rows: Ad name
•Metrics: CTR (all), Spend
•Date Range: Last 7 days vs Previous 7 days (use the "compare to" feature)
Step 3: The Magic Formula Supermetrics will dump the data into your sheet. You'll have the ad name, CTR for the last 7 days, and CTR for the previous 7 days. In a new column, let's say column D, you're going to add this simple formula next to your first ad: =(B2-C2)/C2. This calculates the percentage change in CTR. Drag that formula down for all your ads.
Step 4: Make the Losers Stand Out Click on the column with your percentage change formula. Go to Format > Conditional formatting. Set up a rule that says if the value is less than -0.15 (that's a 15% drop), color the cell bright red. Now your failing ads will scream at you from the page.
Step 5: Automate the Alerts In Supermetrics, schedule the query to refresh every morning at 6 AM. Then, in Google Sheets, go to Tools > Notification rules. Set it up to email you daily whenever any changes are made. Since the data refreshes daily, you'll get an email every morning with a link to the sheet, showing you exactly which ads need your attention.
What You'll Get:
•Catch fatiguing ads 3-4 days earlier than you would manually.
•Save at least 3 hours per weekS of mind-numbing manual analysis.
•Reduce wasted ad spend by an easy 10-20% by cutting losers faster.
•Look like a genius to your boss or your clients.
Real Example:
I set this up for a client spending $100k/month. In the first week alone, the sheet flagged four ads that had dropped in performance by over 20%. We would have caught them eventually, but this sheet caught them 3 days earlier, saving an estimated $2,400 in wasted spend. Total setup time: 18 minutes.
Pro Tips:
•Create separate tabs in your Google Sheet for different campaigns or clients.
•Adjust the CTR drop threshold. For prospecting campaigns, you might tolerate a 20% drop, but for retargeting, you might want to set it at 10%.
•Add spend data to your alert. Use another conditional formatting rule to highlight any ad that has both a CTR drop AND high spend.
Tools/Resources Needed:
•Google Sheets (URL: https://sheets.google.com)
•Supermetrics (URL: https://supermetrics.com)
•Time required: 20 minutes to set up, 0 minutes ongoing.
•Cost: Free (during the Supermetrics trial, then it's a paid tool that pays for itself 10x over).
Now, go do it. Stop reading and start building. This is one of the easiest ways to put more money back into your pocket. Try it and tell me I'm wrong.

