A cloud-based service included in Microsoft 365, delivering scalable messaging and collaboration features with simplified management and automatic updates.
English-only support.
EwsAllowedAppIDs is supported in Exchange Online.
Use these points to validate the configuration:
- Enable EWS at the organization level:
Set-OrganizationConfig -EwsEnabled $true - Set the allowed application IDs as a comma-separated list of Entra application IDs:
Set-OrganizationConfig -EwsAllowedAppIDs "f8d98a96-0999-43f5-8af3-69971c7bb423,3876d2eb-0d08-4230-961b-428ddd74a40f,820f153b-2593-41ba-8d8c-157eec4bb791" - Verify with the retrieval switch that exposes the EWS operation access policy values:
Get-OrganizationConfig -RetrieveEwsOperationAccessPolicy | Format-List EwsAllowedAppIDs
Get-OrganizationConfig | fl EwsEnabled,EwsAllowedAppIDs is not the documented verification method for this setting. The documented command for viewing configured app IDs is:
Get-OrganizationConfig -RetrieveEwsOperationAccessPolicy | Format-List EwsAllowedAppIDs
Additional notes:
- Do not include curly braces around values.
- To remove the restriction, set the parameter to
$null. -
EwsAllowedAppIDsrestricts EWS access to only the specified Entra applications when EWS is enabled.
The provided context does not state that this feature is still rolling out in Exchange Online.