iCloud password not working in third-party apps? Here`s the fix!
(iMore iPhone)

If your Apple ID doesn`t work when signing back in to third-party apps, it`s possible you have an app-specific password set up for it. Here`s how to find out. Some third-party apps allow you to connect to iCloud by signing in with your Apple ID. Apple provides the option to, instead, use app-specific passwords to ensure your Apple ID is protected (this becomes a requirement for third-party apps as of June 15). You may have used an app-specific password to sign into iCloud with a third-party app in the past and forgotten you had done so. If you then try to sign back in to iCloud in that third-party app, but you use your actual Apple ID instead, it won`t accept that password as proper credentials. If you have trouble using your Apple ID to sign into a third-party app, you should check to see whether you`ve used an app-specific password instead. How to check to see if a third-party app is using an app-specific password to sign in to iCloud You can view whether you have an app-specif...