This type of thing is exactly the reason why nobody should ever use an Android. In this situation, seryosongoso is absolutely correct - the common sense assumption is that a long press is needed, because a tap will just send a call. In typical moronic Android fashion, they just couldn't resist the urge to be *cute* and *clever* and design it in a nonsensical way. Also could have gone with a left slide, didn't do it. Could have gone with a right slide, didn't do it. My advice is to take your phone out in the street and run it over with your car about thirty or forty times, and then go and buy an iPhone. That's what I did years ago, but my employer unfortunately provided me with an Android so I'm stuck with it.
It's a shame that's how you feel about Android @Slayton McDonough but it's nice to see you've recently signed up to be a new member of this Samsung Community Forum to take some of your own time to be able to help fellow android owners.
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.
I have an A71, software fully up-to-date , and I have just had the exact same problem as the previous 4 members who posted.
Yesterday it took 5 or 6 attempts to tap and get the "add to contacts " prompt. Today I could not get it, exited the app, opened it again and it worked first time.
This was driving me crazy. You must start with one short tap. Otherwise it switches to "select items" and it will not let you do this from there. If it is not working, start over, and one short tap.