verification Failed - this action cannot be completed

So i was having this exact problem. I came home and couldn't sign in on any device. reset my password online and still couldn't sign in. what i found to fix the problem is a workaround at best. i created a new Apple ID account and signed in with that. Then i signed out and signed back in with my original account. it worked. i had to do this on every device including my Apple TV 4.

OK, so this worked for me also finally. What's up with Apple not moving this up or even providing more recommendation to solve this issue that's plagued me for months - that's all infuriating.

but this answer:

http://apple.stackexchange.com/questions/235957/after-el-capitan-update-i-cannot -sign-in-to-anything-with-my-apple-id-th…

which someone else also suggested but I had to go to page to get the real answer (the short cut command this person constructed didn't work) was the only way to get through...

This answer was the solution that worked for me:

sudo mkdir -p /Users/Shared
sudo chown root:wheel /Users/Shared
sudo chmod -R 1777 /Users/Shared

I just got a 7 Plus today and I finally managed to switch everything over from my 6S only to be continually getting a "Verification Failed" message every single time I try to log in to my iTunes account. I can get online on my Mac just fine, but the phone won't let me sign in, and I can't do anything at all. I just get stuck in a never-ending loop of "VERIFICATION FAILED" even though I know I'm entering the password correctly.

I've already contacted Apple Support, I don't have Two-Step Verification turned on (as a lot of other posts claimed as a source of the problem), and I don't know what else there is to do. Trying not to freak out TOO much, but also sort of failing on that end.

Hope it works out for you.

SAME HERE, I even changed my password thinking maaaybe something was up on that end, but still nothing. All my friends seem to be texting me fine and as best as I can tell none of them are having this problem right now, but it does seem strange that suddenly this problem is arising across multiple people's iOS devices tonight. Maybe it's an issue with Apple?

I'm too frustrated to keep messing with my phone (I mean it's a bUMMER because it doesn't work and it's like haha okay DEPRESSING MUCH), so I'm just calling it a night for now and leaving everything turned off, and hopefully things will be better in the morning and if not I'll try and call Apple and see if something's up. Ugh. It's sort of a relief to know I'm not the only one with this problem right now, though!

Okay I'm glad I'm not the only one, can't even check my email. literally.

I wanted to purchase a song, went to the iTunes Store, clicked on my account and it asked for my password, typed it and it said I couldn't login or something like that.

and now I'm stuck here, waiting for whatever went wrong to fix itself.

IT is very strange that this is only happening on my iPad not my wife's iPad not any of our phones or the kids phones. Can log in on website. It's very frustratin and sad that I spent so much of my evening trying to fix it.

Same here. Got an Ipad mini 2 with retina display and i've done everything from resetting the network settings, hard resetting numerous times and whatnot. icloud and Itunes can be signed into both the computer and my iphone but not my ipad. @.@

Thank you! This solved my 2 day long problem! whew

same problem, no answer! I'm sickened with no Apple support.

Hey Apple, how about addressing this issue so we can get on with our lives??

I'm also getting this same error, starting this evening. I haven't replaced any devices recently; it just suddenly started telling me Verification Failed when I try to access my iCloud/iTunes accounts on my iPhone 6s or my iPad mini. I can login just fine on my Mac and through the web. Even tried resetting my password and that didn't make any difference at all. Not sure what is going on, but it does seem weird that 3 different people have now added a "me too" to this post on the same night after several months of the thread being dormant.

I'm only having this issue on one device...out of 3. However, when I went to sign in here it used the 2 step verification process. It sent a verification code to the device I am having issues with, I entered it, and it told me the verification code was incorrect. I tried this twice. Finally, I had a text sent to my phone (which in addition to this device is okay) which I entered and it worked just fine. The device having issues is an iPad mini, iOS 9.3.5. Since this issue is happening to others with different devices and probably iOS versions, I'm guessing it is indeed an issue with Apple. Hope they fix it soon.

yeah it's not happening with my mom's phone or my friends' phones, but it is with both my new phone and the one that i was switching from. i haven't checked my ipad (and probably won't because i'm already frustrated/depressed about it enough as it is right now).

perhaps there's an issue with apple tonight?

I see I'm in good company. Phone started doing the same thing, I've even reset my password three times and still the same "verification failed." I've been fooling with this thing going on almost four hours. I'm done. This is clearly a system issue somewhere in their ecosystem (even though their system says there are no issues). I'm going to call it a night. Maybe they'll quietly fix it by tomorrow morning. Maybe.

honestly, it's such a relief to know it's not just me. I was so worried I'd somehow managed to screw up restoring from a backup and I was like I KNOW I'VE DONE THIS SO MANY TIMES BEFORE BUT CLEARLY I MESSED THIS UP, but at least there's comfort in numbers to an extent, and while it definitely doesn't make it better or resolve the issue, at least it does show that there IS an issue going on. hopefully it's fixed soon - having a phone that's rendered completely and totally unusable is going to get really old really fast.

This issue started happening tonight to me as well. I went to make an IAP and it said "Verification Failed" I signed out of my Apple ID and when I went to sign back in the same message popped up now I'm permanently locked out of my Apple ID. Hope they fix this soon...