Instructions will vary depending on which portal you are using (old vs new etc) Office add-ins in all applications apart from Outlook My ReadWriteMailbox Apps: Enables a user to install and manage add-ins that request the ReadWriteMailbox permission level in their manifest.Īdmin center > permissions > user roles > Default Role Assignment.My Custom Apps: Enables a user to install and manage custom add-ins for their own use.My Marketplace Apps: Enables a user to install and manage Office Store add-ins for their own use.Install Outlook add-ins are separate, and are easily removed by modifying theĭefault role assignment policy to remove the following roles: Disable add-ins in Outlookĭisabling Outlook add-ins using Outlook roles Users to install any add-ins they want, and just have a list of pre-approvedĪpps available to users that you are happy with.Īdd-ins are controlled separately in Outlook vs other Office applications, so we’ll look at how to disable in both locations. I’d therefore recommend that you limit the ability of Want users to be able to install whatever they want, there may be securityĬoncerns with add-ins which can potentially read email and documents and sendĭata to the internet. The webĬomponents all run in the context of a browser in a sandbox.

Specified controls in the UI, and then loads the JavaScript and HTML. For an Outlook add-in, Outlook reads the manifest and hooks up the Unlike COM add-ins, Outlook add-insĭon’t have any code physically installed on the user’s device or OutlookĬlient. Office add-ins are a great way of extending the functionality of Office applications such as Outlook, Word, Excel, and even web applications like Outlook Online (OWA).Īre different to older COM type add-ins, as described here: Īdd-ins are different from COM or VSTO add-ins, which are older integrations How to prevent installation of and publish Microsoft Office add-ins in Office 365.

Office 365 outlook add-ins