Alerts on iPhone and iPad
I would like to find out how to set up alerts for my calendars on my iPhone and iPad. I have a general idea about how to do this, but for some of the events I would like to set up a default time for the alerts (e.g., 1 day before). I would like to avoid going to each event individually to do this, as it involves calendar events I would like to display ahead of time.
I synchronize my e-mail (AT&T Mail/Yahoo!) calendar with my iPhone and iPad. Usually when I add an event on the calendar, it appears on my devices. I am now trying to have these events appear as an alert on the iPhone and iPad. I would appreciate any advice anyone can give me regarding this issue.
iPhone SE, iOS 15