Debugging an Office 365 ADFS/SSO issue when accessing Office Store in browser

1st of August, 2016 / / 2 Comments

We recently came across an issue with a customer where they had configured a standard SSO experience with Office 365 using ADFS and it was working perfectly except for a specific use case.   When a user accesses the office store via the Office 365 portal (e.g. portal.office.com/store) they got into an endless SSO login loop.  Specfically, they would see the following:

  1. Connection to Portal.Office.com
  2. Redirection to login.microsoftonline.com
  3. Redirection to adfs.customerdomain.com (automatically signed in because of WIA SSO)
  4. Redirection to login.microsftonline.com
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