---
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title: Upgrade Microsoft 365 Authentication in Einstein Activity Capture to Microsoft Graph
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/264-0-0/rn_sales_productivity_eac_graph_ga.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_sales_productivity_eac_graph_ga.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: d0e535b9c8a8a8da3c0b126b1e15fe6c43371313a069de1efc729b6698824bdb
description: Transition your Einstein Activity Capture’s Microsoft Office 365 authentication to Microsoft Graph, to keep your data syncing without disruption when Microsoft retires Exchange Web Services (EWS) in October 2026. Microsoft Graph is the new, secure, and scalable standard for authentication. Proactive notifications and a single-click tool make the upgrade process smooth.
products:
  - Cross Cloud
release: "264"
---
# Upgrade Microsoft 365 Authentication in Einstein Activity Capture to Microsoft Graph

Transition your Einstein Activity Capture’s Microsoft Office 365 authentication to Microsoft Graph, to keep your data syncing without disruption when Microsoft retires Exchange Web Services (EWS) in October 2026. Microsoft Graph is the new, secure, and scalable standard for authentication. Proactive notifications and a single-click tool make the upgrade process smooth.

**Where:** This feature is available in Lightning Experience in Starter, Professional, Enterprise, Unlimited, Einstein 1 Sales, and Agentforce 1 Sales editions. It’s also available with the Einstein for Sales, Sales Engagement, and Revenue Intelligence add-ons.

**When:** This feature is available starting in February 2026.

**Who:** The upgrade is available if Einstein Activity Capture is configured to use Microsoft 365. If you’re setting up Einstein Activity Capture with Microsoft Office 365 starting in Spring ’26, you’re automatically authenticated by using Microsoft Graph.

**Why:** This upgrade is essential to align with Microsoft’s evolving security standards and to avoid potential disruptions as EWS reaches its end of life in October 2026. By transitioning to Microsoft Graph, Salesforce makes sure that your organization remains compliant and competitive, with improved support for modern features and enhanced user-level authentication.

**How:** Before and during the upgrade, make sure that your Azure admin has granted Microsoft Graph consent. Then, use the upgrade tool to authorize the connection and complete the transition.

![Einstein Activity Capture setting where you start the Microsoft Graph migration process.](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-release-notes-salesforce_release_notes-264-0-0-production-enus/550ba85b-db1a-4608-9cd4-9a65ec96e1fa/salesforce_release_notes/images/sales/rn_sales_productivity_eac_graph_upgrade.png)

If Einstein Activity Capture is configured to use User-Level OAuth, users must reconnect to their Microsoft 365 accounts to complete the connection upgrade.

#### See Also

- [Upgrade Microsoft 365 Authentication in Inbox to Microsoft Graph](https://help.salesforce.com/s/articleView?id=release-notes.rn_sales_productivity_inbox_graph_migration.htm&release=264.0.0&type=5 "Transition your Inbox’s Microsoft 365 authentication method from Exchange Web Services (EWS) to Microsoft Graph, which is more modern, secure, and scalable. Microsoft is retiring EWS in October 2026, so switch to Microsoft Graph to avoid service disruption.")
- [_Salesforce Help:_ Upgrade Einstein Activity Capture to Microsoft Graph](https://help.salesforce.com/s/articleView?id=sales.eac_ews_graph.htm&language=en_US)
- [_Microsoft Learn:_ Deprecation of Exchange Web Services in Exchange Online](https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/deprecation-of-ews-exchange-online)