Restrict employee to access certain application in O365 subscription

We have one Employee who we need to restrict access to the following application in O365:

  • Exchange Online
  • SharePoint sites and files that are explicitly shared with them
  • Teams desktop
  • Skype for Business

Now I have been tasked to do the above before end of the day. I am struggling to do it. How can we achieve this? This is my first job as a SystemAdmin so any help appreciated.

Use this article: Disable access to Microsoft 365 services with PowerShell - Microsoft 365 Enterprise | Microsoft Learn

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