Skype for Business EWS retirement preparation
Timelines and exceptionsTimeline
From the capture of 6 Oct 08:00 UTC · an earlier observationLegacy capture: table structure or oversized sections are unavailable for extraction
Microsoft's revision log on this page · 31 entries
Dates from the page's own change log or history section. They describe earlier edits, not upcoming policy.
- End of August 2026 · Before April 1, 2027 · After April 1, 2027Prepare for EWS retirement in Exchange OnlineMilestone
- End of August 2026 · October 1, 2026 · Before April 1, 2027 · April 1, 2027Key dates and timelineMilestoneRequirement1 condition
- What administrators must doRequirement
- What administrators must doRequirement
- End of August 2026 · Before April 1, 2027What administrators must doRequirement
- end of August 2026Action 1: Configure the EWS allow list (before end of August 2026)Milestone
- end of August 2026 · Starting October 2026 · October 1, 2026Action 1: Configure the EWS allow list (before end of August 2026)MilestoneException1 condition
- end of August 2026Action 1: Configure the EWS allow list (before end of August 2026)Exception1 condition
- end of August 2026Action 1: Configure the EWS allow list (before end of August 2026)Requirement
- end of August 2026Action 1: Configure the EWS allow list (before end of August 2026)Requirement
- end of August 2026 · before September 2026Action 1: Configure the EWS allow list (before end of August 2026)Recommendation
- end of August 2026Action 1: Configure the EWS allow list (before end of August 2026)Scope1 condition
- end of August 2026 · the end of August 2026 · October 1, 2026Action 1: Configure the EWS allow list (before end of August 2026)Scope1 condition
- before April 1, 2027 · April 1, 2027Action 2: Install the upcoming Skype for Business Server update (before April 1, 2027)Milestone
- before April 1, 2027Action 2: Install the upcoming Skype for Business Server update (before April 1, 2027)Exception
- before April 1, 2027Action 2: Install the upcoming Skype for Business Server update (before April 1, 2027)Milestone1 condition
- Recommended next stepsRecommendation
- end of August 2026Recommended next stepsRecommendation
- Recommended next stepsRecommendation
Get-CsOAuthConfiguration - Recommended next stepsRecommendation
- April 1, 2027Recommended next stepsRecommendation
- Related articlesScope
Extracted automatically from Microsoft's wording. Confirm dates, conditions and whether they apply to you in the source before acting; a month or quarter is a window, not a day.
How this timeline changed
Changes between ChangeIntel's readings of the page, between commits of its source file where Microsoft publishes it, in Internet Archive copies of pages that keep no other history, and entries from Microsoft's own change log (dated as Microsoft dates them). Edits between readings that neither records are unknown.
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Microsoft logged an update Action 2: Install the upcoming Skype for Business Server update (before April 1, 2027)Microsoft's change log
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Microsoft logged an update Action 2: Install the upcoming Skype for Business Server update (before April 1, 2027)Microsoft's change log
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Microsoft logged an update Action 2: Install the upcoming Skype for Business Server update (before April 1, 2027)Microsoft's change log
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Microsoft logged an update Action 1: Configure the EWS allow list (before end of August 2026)Microsoft's change log
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Microsoft logged an update Action 1: Configure the EWS allow list (before end of August 2026)Microsoft's change log
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Microsoft logged an update Action 1: Configure the EWS allow list (before end of August 2026)Microsoft's change log
6 earlier changes
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Microsoft logged an addition Action 1: Configure the EWS allow list (before end of August 2026)Microsoft's change log
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Microsoft logged an addition Action 1: Configure the EWS allow list (before end of August 2026)Microsoft's change log
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Microsoft logged an update Action 1: Configure the EWS allow list (before end of August 2026)Microsoft's change log
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Microsoft logged an addition Action 1: Configure the EWS allow list (before end of August 2026)Microsoft's change log
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Microsoft logged an update Action 1: Configure the EWS allow list (before end of August 2026)Microsoft's change log
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Observed history and review priority
Captured 6 Oct 08:00 UTC; extracted 16 Oct 16:10 UTC. Extractor: microsoft-1/9/fc65ebeb286710c0a830833db8a7e5de7e266b79981fe9c7c34479be9369ad3c/legacy.
Earlier unavailable versions and edits between checks are unknown. A missing statement requires review; it does not mean the policy was cancelled. Recovered historical statements are not original revision snapshots.
Retained observations · 2
Compact evidence remains available after full document bodies expire. Earlier extractions can have different vocabulary or capture limitations.
- 13 Oct 09:16 UTC · 35 candidates
- 6 Oct 08:00 UTC · 35 candidates