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Fix Test-MigrationServerAvailability SupportsCutover False in Exchange
Question details
The user is attempting to perform an Exchange email migration, but the migration test incorrectly indicates that cutover migration is not supported despite correct configurations.
- Product
- Microsoft Exchange Server / Microsoft 365
- Device & OS
- not provided
- Scenario
- Testing Exchange server availability for a cutover email migration to Microsoft 365.
- Observed behavior
- The Test-MigrationServerAvailability cmdlet returns 'Success' and 'IsValid True', but 'SupportsCutover' shows as 'False' even when SSL, MRS Proxy, Outlook Anywhere, and EWS settings are correct.
Ensure you have global administrator or Exchange administrator privileges in your Microsoft 365 tenant before running advanced migration tests or submitting support requests.
Create a Microsoft 365 Service Request
Since the local Exchange configurations appear correct, contacting Microsoft Support is the recommended step to resolve backend migration endpoint issues.
When all local settings (SSL, MRS Proxy, Outlook Anywhere) are verified but the SupportsCutover flag remains False, the issue often lies within the Microsoft 365 backend processing the endpoint. An administrator must raise a ticket with Microsoft for deep migration analysis.
Navigate to the Microsoft 365 admin center (admin.microsoft.com) and log in using your global administrator credentials.
Click on the 'Help & support' icon located at the bottom right corner of the admin center dashboard.
Type 'Exchange migration SupportsCutover False' in the search bar, review the automated suggestions, and then select the option to contact support to open a new service ticket.
In your ticket, include the migration type, your on-premises Exchange Server version, endpoint configuration details, and the complete output of the Test-MigrationServerAvailability cmdlet (ensuring no passwords or credentials are exposed).
Verify Exchange Migration Prerequisites
Double-check that all on-premises Exchange connectivity requirements are strictly met before engaging Microsoft support.
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Frequently Asked Questions
What does SupportsCutover False mean during an Exchange migration?
It indicates that the Microsoft 365 migration service cannot establish the necessary RPC over HTTP (Outlook Anywhere) connection required to perform a full cutover migration from your on-premises Exchange server.
Why does the test show IsValid True but SupportsCutover False?
An 'IsValid True' status means the basic connection to your Exchange server endpoint was successful. However, 'SupportsCutover False' means specific configurations required for a cutover migration (such as specific Outlook Anywhere settings or permissions) are failing the verification checks.
What information should I include when opening a Microsoft support ticket for this issue?
You should provide your exact on-premises Exchange Server version, the specific migration type you are attempting, your endpoint configuration, and the complete textual output of the Test-MigrationServerAvailability cmdlet. Ensure you remove or obfuscate any administrator credentials before submitting.
