TitanHQ and the EWS retirement
Microsoft Graph migration status from TitanHQ's own notices. Last checked 2026-10-21.
ArcTitan (Microsoft Exchange backup)
- Status
- Migration announced
“please navigate to the M365 Overview page and update permissions by 30th September to avoid service disruption”
EWS is being deprecated - update permissions to continue using the Microsoft Exchange Backup product (TitanHQ Help Center), read 2026-10-21.
What to do. TitanHQ asks ArcTitan customers who protect an Exchange Online tenant to update permissions on the M365 Overview page. The page does not say which API the backup uses after that.
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 TitanHQ. 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.