(Updated) Microsoft 365 Copilot: Updates to license request custom flow [MC1262570]
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(Updated) Microsoft 365 Copilot: Updates to license request custom flow [MC1262570]

Message ID: MC1262570 (Updated) Updated April 24, 2026: We have updated the timeline. Thank you for your patience. [Introduction]Microsoft is improving the custom license request experience for Microsoft 365 Copilot to help organizations better align Copilot license requests with their internal…
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Microsoft 365 Apps: Cloud Update adds update health reporting [MC1289720]
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Microsoft 365 Apps: Cloud Update adds update health reporting [MC1289720]

Message ID: MC1289720 [Introduction]Update health builds on existing Cloud Update insights by adding clearer, more actionable diagnostics when an update does not complete successfully. Administrators see descriptive, easy‑to‑understand error messaging aligned with error codes, along with aggregated issue views across…
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(Updated) Auto upgrade of shared calendars from legacy MAPI model to modern REST model [MC1287370]
Posted inMicrosoft 365 suite

(Updated) Auto upgrade of shared calendars from legacy MAPI model to modern REST model [MC1287370]

Message ID: MC1287370 (Updated) Updated April 22, 2026: We have updated the timeline and content. Thank you for your patience. [Introduction]Microsoft is introducing an automatic upgrade for shared calendars in Outlook and Exchange Online, transitioning from the legacy MAPI-based model to…
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(Updated) Auto upgrade of shared calendars from legacy MAPI model to modern REST model [MC1287370]
Posted inMicrosoft 365 suite

(Updated) Auto upgrade of shared calendars from legacy MAPI model to modern REST model [MC1287370]

Message ID: MC1287370 (Updated) Updated April 21, 2026: We have updated the timeline. Thank you for your patience. [Introduction]Microsoft is introducing an automatic upgrade for shared calendars in Outlook and Exchange Online, transitioning from the legacy MAPI-based model to the modern…
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Auto upgrade of shared calendars from legacy MAPI model to modern REST model [MC1287370]
Posted inMicrosoft 365 suite

Auto upgrade of shared calendars from legacy MAPI model to modern REST model [MC1287370]

Message ID: MC1287370 [Introduction]Microsoft is introducing an automatic upgrade for shared calendars in Outlook and Exchange Online, transitioning from the legacy MAPI-based model to the modern REST-based model. This server-side upgrade will improve calendar sync reliability, performance, and consistency for…
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Exchange Online, SharePoint Online, and Microsoft Teams: April 2026 industry-wide DigiCert Global Root CA (G1) distrust [MC1282565]
Posted inMicrosoft 365 suite

Exchange Online, SharePoint Online, and Microsoft Teams: April 2026 industry-wide DigiCert Global Root CA (G1) distrust [MC1282565]

Message ID: MC1282565 [Introduction]To support industry-wide security improvements and modern cryptographic standards, browsers and platforms that follow Mozilla and Chrome trust stores will begin distrusting the DigiCert Global Root CA (G1) starting April 15, 2026. Microsoft has already migrated Microsoft 365 services…
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