Hi there,
I am implementing the project of the Directory Synchronization for SharePoint Online. We built the AD FS and AD FS Proxy. We are not using the TMG. The DNS record for the public domain was confirmed.
The problem: I don't see an option of "SharePoint Online: I want my Office 365 public website to be..." in the "Set domain purpose" section. Exchange Online and Lync Online options do exist.
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I have the following information about the trial subscription on Office 365:
Office 365 Enterprise E3 Trial / 25 user licenses / No cost / Expires June 11, 2014
Thank you very much for your help, in advance!