Implementing AD integration with Office 365 using a sub-domain (for dev/test)

The other day I found an interesting article from Chris O’Brien to create multiple tenants of O365 for dev or test, in a subdomain

Before start, be sure you have or you know the person that has the permission to do the following:

  • An Office 365 tenant ready and provisioned (could be a 30 day trial)
  • The top-level domain (e.g. – this needs to be something you/your organization already owns and has registered
  • Ability to manage DNS for the domain (usually at the ISP hosting the domain)
  • Ability to create user accounts in the AD you’ll use

Hope it helps


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