Deploying the Outlook Add-In through Microsoft 365 Admin Center
After configuring the Outlook Add-In and downloading the .xml configuration file. Upload it to the Microsoft 365 Admin Center to deploy or update the add-in for your users.
For more information, see Deploy Add-Ins in the Microsoft 365 Admin Center.
Note:
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Any configuration change requires downloading and re-uploading the updated xml file to the Microsoft 365 Admin Center for the changes to take effect.
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The Outlook Add-In may appear up to 72 hours after installation.