A six year Meta advertiser who says he used to spend $70K to $100K a month profitably posted that his campaigns broke after the Andromeda changes, and months of blaming creative, audiences and landing pages fixed nothing. What did, he says, was mapping sales times against his audience's time zones.
The strategy
His theory is that the older delivery system found pockets of buyers and slowed spend when they were offline, whereas the current one spends evenly across 24 hours, reaching people whether or not they are in buying mode. To test it, he used tag manager to rule out bots, then tracked every sale for two weeks. According to the post, all of them landed between 9pm and 11am his local time, a window covering US daytime, UK evening and Australian morning, while the other twelve hours produced nothing and ate 30 to 40 percent of the daily budget.
So he set up dayparting: the same creative, audiences and budget, but ads only run during the window where sales actually happen. He is clear that this does not fix the algorithm. It stops the bleed. He also advises pulling purchases by hour in Ads Manager before touching anything else.
Why it works
Whether or not his explanation of the delivery change is right, the method is plain measurement. If your data shows twelve dead hours, paying the same CPM for them is the cheapest waste to cut, and the fix needs no new content.
How to schedule Meta ads to run at specific hours
Break down purchases by hour for at least two weeks, mark the hours that produce most conversions, and schedule ads with automated rules or a lifetime budget schedule. Revisit monthly, since the window moves.
Credit: u/Fabulous_Rich8974 on Reddit