Posted inExchange Online Microsoft 365 for the web
Microsoft Outlook for the web: Third-party cookie block causes users to sign in again on Chrome and Edge [MC871011]
Microsoft Outlook for the web is undergoing an authentication platform migration to a public client authentication model using MSAL (Microsoft Authentication Library). The change to client-side authentication will be subject to Google's third-party cookie block that may be active in Chrome and Edge.
![Microsoft Outlook for the web: Third-party cookie block causes users to sign in again on Chrome and Edge [MC871011] 1 Microsoft Outlook for the web: Third-party cookie block causes users to sign in again on Chrome and Edge [MC871011]](https://mwpro.co.uk/wp-content/uploads/2024/08/pexels-jplenio-1103970-1024x683.webp)
![[Reminder] Microsoft Team: Review and update Tenant Federation setting to block external access with trial-only tenants [MC870997] 2 [Reminder] Microsoft Team: Review and update Tenant Federation setting to block external access with trial-only tenants [MC870997]](https://mwpro.co.uk/wp-content/uploads/2024/08/pexels-goumbik-296287-1024x683.webp)
![New Microsoft Outlook: New Get diagnostics feature for users to submit logs to Microsoft Support during an interaction [MC869930] 3 New Microsoft Outlook: New Get diagnostics feature for users to submit logs to Microsoft Support during an interaction [MC869930]](https://mwpro.co.uk/wp-content/uploads/2024/08/pexels-timmossholder-1154739-1024x683.webp)
![URLs for deployment configurations will be retired [MC867651] 4 URLs for deployment configurations will be retired [MC867651]](https://mwpro.co.uk/wp-content/uploads/2024/08/pexels-evgeny-tchebotarev-1058775-4101555-1024x683.webp)
![Microsoft Viva Engage: Private unlisted groups in external networks will retire and be deleted in January 2025 [MC867664] 5 Microsoft Viva Engage: Private unlisted groups in external networks will retire and be deleted in January 2025 [MC867664]](https://mwpro.co.uk/wp-content/uploads/2024/08/pexels-alxs-919734.bak_-1024x683.webp)
![Backfilling Microsoft Graph Connector Entitlement to 50M items [MC865187] 6 Backfilling Microsoft Graph Connector Entitlement to 50M items [MC865187]](https://mwpro.co.uk/wp-content/uploads/2024/08/pexels-brett-sayles-2516539-1024x683.webp)