September 30, 2026
Your best Facebook ad stopped working in the middle of Black Friday. What to do.
It is Friday lunchtime, Black Friday. The ad that carried your Shopify store all of October has fallen off a cliff. Cost per purchase has doubled since yesterday, the sales column in Ads Manager is thin, and every instinct you have says do something.
Here is the short version. Before you touch that ad, spend ten minutes finding out whether it is actually dead. Most of the time on Black Friday weekend it is not. Your numbers are late, everyone’s costs are up, or you reset it yourself earlier in the week. And if it really is dead, the fix is to build around it, not to operate on it.
Step one: check it is really dead
Three things make a working ad look broken on Black Friday weekend.
Your numbers are late. Meta puts a purchase against the day someone saw or clicked your ad, not the day they bought, and it keeps adding purchases for days afterwards. So today and yesterday always look worse in Ads Manager than they will by next week. Black Friday makes this worse, because lots of people click an ad earlier in the week and come back on Friday to buy.
Quick check: open Shopify and look at today’s orders against the same hours last Friday. If your store is selling and Ads Manager says it is not, the gap is mostly reporting delay.
Everyone’s costs went up. That weekend every store with a sale is trying to reach the same people. The cost to show your ad to a thousand people, which Ads Manager calls CPM, rises across the board. When it costs more to show the ad, each sale costs more, even if the ad is exactly as good as it was.
Quick check: add the CPM column. If CPM jumped by about as much as your cost per purchase did, the ad is fine and the whole market got more expensive.
You reset it. Did you raise the budget a lot, add your Black Friday creative to that ad set, or change who it targets in the last week? Each of those is a significant edit, which puts the ad set back into learning. Look at the delivery column. If it says Learning, you have your answer.
Step two: if it is really dead, do not operate on it
If Shopify orders from Meta have genuinely dropped, CPM does not explain it, and the ad set is not in learning, it has probably worn out. Frequency is the tell. If the same people have now seen it five, six, seven times, they have stopped reacting to it.
What not to do:
- Do not swap the creative inside it. That is a significant edit and puts it straight back into learning.
- Do not cut the budget to almost nothing and push it back up tomorrow. Two big changes in two days, two resets.
- Do not delete it. If it recovers on Sunday, you want it there.
What to do instead:
- Lower its budget a little, not a lot. Keep the change to about 20 percent, which generally does not reset it. It keeps spending, just less.
- Move that money to your second-best ad set, again in a step of about 20 percent.
- Launch your backup creative in its own new ad set. New ad set, new creative, your Black Friday offer. It starts learning from zero, but Black Friday week is the one time of year when buyers are everywhere and it can get enough sales to settle within days.
- If you have nothing else, duplicate the dead ad set into a new one. The copy starts learning afresh and sometimes delivers like the original did in its first weeks. Keep the original running alongside it at a low budget.
Step three: decide on money, not on panic
The only question that matters on Black Friday is whether each sale still makes you money at your discount. Your October cost per purchase is the wrong yardstick, because your discount has cut how much you can afford to pay for a sale.
Work out that number before the weekend starts. If your cost per purchase is under it, a worse looking Friday is still a profitable Friday. If it is over it, trim spend on the ads doing worst and keep the rest. Your Black Friday discount raises the ROAS you need to break even, and that article has the maths.
How to make sure this is not you next year
Most of this is prevented in October:
- Have two or three spare ads ready before the sale starts, each able to go into its own ad set.
- Scale your winner up in 20 percent steps well before Black Friday so you are not making big edits that week.
- Put your Black Friday ads in their own ad set, not inside the one that works.
- Decide on your maximum cost per purchase at your discount before the sale.
Bottom line
On Black Friday weekend, a best ad that looks dead is usually late numbers, higher costs for everyone, or an edit you made earlier in the week. Check those first. If it really has worn out, leave it alone and build around it with a new ad set.
If you want someone to look at your account before the weekend and tell you which ads are ready and which are likely to fall over, book a teardown call.
Common questions
Why did my Facebook ad suddenly stop working on Black Friday?
Often it did not. Three things make a healthy ad look dead that weekend. Purchases are reported late, so today always looks worse than it will once the numbers fill in. Ad costs rise across the board because every other store is bidding for the same people, so your cost per purchase rises even if your ad is fine. And if you changed the budget, creative or audience on it in the last few days, you may have put it back into the learning phase yourself. Check those three before you decide the ad is broken.
Why does Facebook Ads Manager show fewer purchases today than Shopify?
Meta reports a purchase against the day the person saw or clicked the ad, not the day they bought, and it keeps adding purchases for days afterwards as they come in. So the most recent days in Ads Manager always look low and then fill in. During Black Friday weekend, when people click an ad on Tuesday and buy on Friday, that gap is bigger than usual. Use your Shopify orders for today, and judge your ads on numbers that are at least two or three days old.
Should I duplicate a Facebook ad that stopped working?
Duplicating an ad set gives you a fresh copy that starts learning from zero. That is a reasonable move if the original has genuinely stopped delivering sales for a couple of days, because in Black Friday week there are enough buyers for a copy to settle quickly. Do not delete or edit the original while you do it. Leave it running at a lower spend so you have not lost it if the copy does worse.
Should I turn off my Facebook ads on Black Friday if costs are too high?
Only if you are losing money on each sale, and you can only tell that from your own margins, not from how the numbers compare to October. Costs to reach people are much higher that weekend for everyone, so a higher cost per purchase is expected. Work out the most you can afford to pay for a sale at your Black Friday discount. If your cost per purchase is still under that number, keep going. If it is above it, cut back on the ads doing worst, not on all of them.
Can I edit a Facebook ad during Black Friday?
You can, but every significant edit, like new creative, a new audience, a new optimisation event or a large budget change, puts that ad set back into the learning phase at the most expensive moment of the year. If something needs to change, make the change in a new ad set and leave the working one alone.
Ads live but the numbers do not make sense? That is what I fix.