Acuity Scheduling and the EWS retirement
Microsoft Graph migration status from Acuity Scheduling's own notices. Last checked 2026-10-25.
Acuity Scheduling (Outlook and Office 365 calendar sync, via Cronofy)
- Status
- Migration announced
- Date
- 2026-09-23
“As of October 1, 2026, Microsoft's EWS service will be deprecated and replaced with Microsoft Graph.”
Setting up Microsoft Outlook calendar syncing - Acuity Scheduling Help Center (2026-09-23), read 2026-10-25.
What to do. Acuity syncs Office 365 calendars through Cronofy. If Cronofy emails steps to relink the account, relink the Office 365 calendar in Acuity before 1 October 2026 so calendar sync does not stop.
One email from ewsappid.com each time a status on this page changes, nothing else, and none after 1 April 2027. Every alert has an unsubscribe link; one press deletes your address, or write to support@ewsappid.com at any time. Sender details are on the contact page; see the privacy policy.
Application IDs
This site lists no fixed application ID for Acuity Scheduling. Look up an ID from your EWS usage report on the home page, or find the name behind it in Entra, under Enterprise applications.
Every app in your tenant
The tenant plan reads your EWS usage report in your browser and matches each app against these statuses and your current allow list. All vendor statuses.