

Your sign-in address looks like this: might be asked for both a user name and a sign-in address.
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What’s the format of my sign-in address and user name? If you forgot your user name and password, or it doesn’t work anymore, contact your workplace technical support-typically the person who set up your Skype for Business or Lync account for you. To change your password, see Change your Skype for Business password on your mobile device. If you’re already using Skype for Business on your desktop, then you can sign in with the credentials from your work or school account. You need a sign-in address and password from an organization that has a Skype for Business or Lync license. How do I sign in to the Skype for Business app? Need help signing in on an iPhone or iPad?
