"Your username or password is incorrect" except it isn't

No, but it is in the Apple Support Articles for Two-Step Verification and Two-Factor Authentication:

From the Two-Step support article: Two-step verification for Apple ID - Apple Support

How do I sign in to my account using an app that doesn't support entering two-step verification codes?

You can generate an app-specific password from your Apple ID account page and enter it into the password field of the app that you want to sign in to. This allows you to sign in securely even if the app you’re using doesn’t support entering verification codes. For example, you might use an app-specific password to sign in to iCloud using a third-party email, address book, or calendar app.

If you want to generate an app-specific password, sign in to your Apple ID account page. In the Security section, click Edit > Generate Password.

Learn more about app-specific passwords.

From the Two-Factor support article: Two-factor authentication for Apple ID - Apple Support

Generate app-specific passwords

With two-factor authentication, you need an app-specific password to sign in to your account using third-party apps or services such as email, contacts, or calendar apps not provided by Apple. Follow these steps to generate an app-specific password:

1. Sign in to your Apple ID account page.
2. Click Generate Password below App-Specific Passwords.
3. Follow the steps on your screen.

After you generate your app-specific password, enter or paste it into the password field of the app as you would normally.

You might want to provide feedback to Apple about adding this information to the iCloud Email Support Article: Apple - Feedback

Cheers,

GB

When you log into the mail client on your Android device you need to use the 'app-specific' password provided by the two-factor authentication system instead of your usual iCloud account password, which will no longer work. In order to do this you must set up 2-factor authentication using a Mac running El Capitan or above, or an iOS device running iOS9 or above.

Two-factor authentication for Apple ID - Apple Support

And if you do not have either of the devices with the operating systems that Roger specified above, you need to set up Two-Step Verification, since you aren't eligible for Two-Factor: Two-step verification for Apple ID - Apple Support

GB

This useful contribution should be more widely available:

"If you've set up two-step verification or two-factor authentication the Apple ID that you're using for iCloud, this can occur if not using an app-specific password. The article linked below provides further information about (including how to create and use) app-specific passwords."

it it is not found in, for example, the Apple Support page about accessing iCloud email from other systems, such as the Gmail app on Android.

There is no 'App specific passwords' section when I log in as I have not set up 2 factor authentication.

But the correct details entered into the android device still return an incorrect password.

Any ideas?

Hello,

I am facing the same problem. I don't have a device that supports two factor authentication and when I tried to use two step verification I realized that it is not supported in my country. SO could you help me out of this situation?

I'm afraid not. As far as I can see your only way forward is to set up forwarding of your iCloud mail at the iCloud website, and then get an email service from another provider and transition to using that.

I am having the same issue when I try to set up my Amazon Alexa calendar app to iCloud. I have set up 2 factor authentication and have generated an app specific password. I have tried every combination possible @me.com and my comcast email with the app specific password with and without the dashes.

Have set up Alexa to google no problem.

You need to use the password with the dashes in place of your iCloud password (some people are trying to use it as well as the iCloud password). However I don't know whether 'Alexa' poses any problems compared with standard clients.

I am having the same problem - I have two-factor authentication enabled on my Apple ID and am trying to add the calendar for it to Amazon Alexa in its app. I generated the app-specific password several times and keeps saying the username or password is incorrect. It's frustrating. Did you find a fix?

Howdy JoanneP,

I understand that you're having trouble setting your iCloud email address up on your Android device due to it reporting that your username or password are incorrect. If you've set up two-step verification or two-factor authentication the Apple ID that you're using for iCloud, this can occur if not using an app-specific password. The article linked below provides further information about (including how to create and use) app-specific passwords.

Using app-specific passwords
https://support.apple.com/en-us/HT204397

Cheers!

JoanneP,

Glad that I could help, and thanks for letting us know!

Cheers!

I have the same issue 😟

Thanks for your advice. But could you also tell me why this is happening?

I was working fine till a while ago and suddenly it started giving this error message.