What does the Salesforce alert, Upgrade Microsoft EWS to Graph API by Oct 2026 mean and what do I need to do?

Have you received one of these in your inbox today?

We can help!

What Breaks If Unfixed:

Microsoft is shutting down Exchange Web Services (EWS) connections to Exchange Online on October 1, 2026. If your Salesforce setup uses EWS for email or calendar integration (Einstein Activity Capture, Inbox, or Lightning Sync), your sync will silently disconnect.

  • Silent Activity Loss: Rep emails and customer meetings stop landing on Salesforce records.

  • Broken Dashboards: Pipeline reporting and activity metrics go dark without warning.

  • User Lockouts: Teams face continuous authentication errors in Outlook.

The Solution: Talk to us, we understand what needs to be done

Avoid expensive consultancy quotes and minimum 30-day scopes. We resolve your Graph API upgrade within a matter of hours:

  • Audit current EAC / Microsoft 365 OAuth settings.

  • Configure Microsoft Azure App Registration & Graph permissions.

  • Re-authenticate connections with zero downtime or lost history.

Book a call with us

FAQ

  • No. Connecting the Microsoft account doesn't merge the two platforms — it switches on a specific, controllable tool (Einstein Activity Capture, Salesforce's Outlook-sync feature) where we choose exactly what syncs and for whom.

  • Only what we choose to switch on:

    - Emails: only captured for messages to/from addresses that already match a Salesforce contact or lead — it doesn't pull in your whole mailbox.

    - Contacts and events: we control the direction (one-way or two-way) and whether new contacts get created automatically in Salesforce or just flagged for review.

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