iCloud for Outlook Incorrect Username or Password

jmcrawf Sammy 

Thanks for your messages. I think I should explain my issue in more detail, maybe it could be of further help. On my iphone12 pro my apple id is "example at hotmail dot com" (obvs not the real one) 

In my Outlook 2016 I have the following: a work email, an icloud email (identical to my appleid except that it's icloud) "example at icloud dot com" and iCloud Archive. 

Over a week ago, something which regrettably I cannot recall, happened in my "outlook 2016" whereby a message popped up notifying me that my calendar and contacts have been backed up on icloud. That's when my icloud calendars and contacts stopped syncing with iphone and vice-versa.  I called Apple and we went through uninstalling and reinstalling Icloud For Windows on my Win10 PC,  at least a couple of times. Disabling & renabling the "icloud outlook addin" on outlook.  And multiple reboots to add. On another day my call was passed onto a senior Apple tech who got me to generate a 16 letter appleid password. (That's xxxx-xxxx-xxxx-xxxx). I believe I needed that to reinstall "example at icloud dot com". I might be wrong.

Apple finally gave up citing it as a microsoft authentication issue and that everyone is in the same boat. Obviously that is not correct since both you and SamM1095 are still merrily syncing data.

Saying that I am confused by all this is an understatement.

I did follow your suggestions in this thread but clearly I didn't do it right.

So I will now backup my calendar and contacts to icloud again and also export and download them onto my pc. I will also uninstall icloud for windows. What do I do with my "example at icloud dot com" on my outlook? Do I need to remove it from Outlook? (presumably that's right click and remove?

After that do I need to reinstall the above in a paticular way?

Many thanks for your help.