Arctera and the EWS retirement
Microsoft Graph migration status from Arctera's own notices. Last checked 2026-10-25.
Arctera Unified Platform (Exchange Online Sync)
- Status
- Migration announced
“Customers using Exchange Online Sync under legacy authentication configurations must migrate to the Azure AD Register App Configuration”
Impact of Microsoft Exchange Web Services (EWS) Retirement to Arctera Unified Platform, read 2026-10-25.
What to do. Arctera says its platform is unaffected overall, but customers using Exchange Online Sync with legacy authentication (PowerShell credential plus Exchange service credential) must move to the Azure AD registered app configuration before 1 Oct 2026 or may lose synchronization. Arctera is still checking for remaining EWS dependencies.
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 Arctera. 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.