How many days should a Facebook ad run?
Once again, there is no magic or specific time frame as to how many days a Facebook ad should run. It is recommended that you should run your ad for at least a period of 2 weeks. If you don’t want to run it for that long, then the best way is to run it for 3-4 days and see how it’s performing. You can then decide to either run it for longer or stop right there.