When selecting a monthly campaign budget, a warning occurs, which is not very helpful
The warning that occurs is not very helpful:
Monthly budgets can run out before the end of the month, because they spend your budget as quickly as possible. We recommend that you use a daily budget to make sure that your ads show on every day of the month.
However, if you click on the ? link, that is helpful. I recommend that in the warning, you suggest to the users that they click this button to learn more about the warning.