BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//365Fanatic//Microsoft 365 deadlines//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Microsoft 365 deadlines (365Fanatic)
X-WR-CALDESC:Message Center "act by" dates and Microsoft 365 retirement dat
 es\, with what changes and what to do.
REFRESH-INTERVAL;VALUE=DURATION:PT12H
X-PUBLISHED-TTL:PT12H
BEGIN:VEVENT
UID:ret-mc-mc1243549@www.365fanatic.com
DTSTAMP:20261014T212656Z
DTSTART;VALUE=DATE:20261128
DTEND;VALUE=DATE:20261129
SUMMARY:Retiring: (Updated) Retirement of SharePoint One-Time Passcode (SPO
  OTP) and transition to Microsoft Entra B2B (end of November 2026) (MC1243
 549)
DESCRIPTION:Services: SharePoint Online\, Microsoft OneDrive\nSource: Messa
 ge Center · date is a month\; Microsoft gives no exact day\n\nWHAT CHANGE
 S\n• The EnableAzureADB2BIntegration setting will no longer control exte
 rnal sharing behavior beginning May 2026.\n• SPO OTP authentication will
  retire beginning mid-October 2026.\n• The option to disable Entra B2B i
 ntegration will be removed.\nImpact on external users\n• External users 
 who already have an Entra B2B guest account in your directory:• No chang
 e in behavior.\n\nWHAT TO DO\nTo ensure a smooth transition:\n• Review e
 xternal sharing policies and conditional access settings for guests in Sha
 rePoint and Entra admin centers.\n• Ensure that Microsoft Entra is confi
 gured to allow guest invitations for the appropriate users. For example\, 
 assign the Guest Inviter role to users who need external sharing or are re
 sponsible for creating guest accounts.\n• Inform users that\, beginning 
 in mid-October 2026\, some external collaborators may see an access denied
  message when opening older links that were previously authenticated with 
 SharePoint Online OTP.\n\nMore: https://www.365fanatic.com/message-center/
 MC1243549/\n\nDeadlines calendar by 365Fanatic: https://www.365fanatic.com
 /m365-deadlines-calendar/
URL:https://www.365fanatic.com/message-center/MC1243549/
CATEGORIES:Microsoft 365 retirement
TRANSP:TRANSPARENT
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR