Quest and the EWS retirement
Microsoft Graph migration status from Quest's own notices. Last checked 2026-10-22.
Quest On Demand Migration
- Status
- Migration announced
- Vendor notice
- https://support.quest.com/on-demand-migration/kb/4380720/new-email-migration-permissions
“Microsoft announced the deprecation of EWS for October 2026, and we are currently working on transitioning all EWS operations to Graph.”
New Email Migration Permissions (4380720), read 2026-10-22.
What to do. Quest is moving On Demand Migration's mailbox work from EWS to Graph and added Graph permissions to the Mailbox Migration app; keep its app IDs on EwsAllowedAppIDs until Quest says the move is done.
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
38a32382-73cb-4813-b6d2-96ed716ddeccQuest On Demand Migration, Mailbox (Minimal)5adae0aa-b031-421d-a64c-d8041e864be5Quest On Demand Migration, Mailbox (Full)8de29203-c58a-45e2-ac4f-7a3784b66933Quest On Demand Migration, Mailbox (Custom RBAC)
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.