JavaScript API
An Office service that supports add-ins to interact with objects in Office client applications.
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Hi,
Can I add a custom button adjacent to Send button in Mail compose window? Im trying to do the same using Outlook for Mac JS add-ins.
This is currently not possible. If you want to add this as a feature request, we suggest you go to the Microsoft Tech Community New Ideas forum for the Microsoft 365 Developer Platform (aka.ms/m365dev-suggestions) and see if your feature has already been requested or request a new feature.
Thanks,
Microsoft 365 Developer Platform team