It starts in a few hours. But I recommend setting up the advertisement in advance, crediting the money and putting the right start date. Because your advertisement must go through moderation, there is a risk that it will be rejected, coordination will take time and you will not make it by the deadline. So it is better to go through all this in advance.
Ads can be shown many times to one user. But if you select the "Scope" target in the ad settings, you can control the frequency of impressions.
Ads can be shown many times to one user. But if you select the "Scope" target in the ad settings, you can control the frequency of impressions.