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We have custom Outlook add-in which is displayed when user selects any email message inside Office Outlook client or inside outlook.office.com browser.

I see that Outlook add-in is not displayed when user selects an email present in the SharePoint Group's mailbox either from Outlook client or inside browser.

I tried adding SupportsSharedFolder (thinking it may support Group mailbox) referring stackoverflow question but that too is not working for Group Mailbox. Publishing Outlook add-in which uses Outlook preview element - SupportsSharedFolders

<SupportsSharedFolders>true</SupportsSharedFolders>

I would like to know if Outlook add-ins are supported by SharePoint Group mailbox or not?

Thank you!

Eugene Astafiev
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Sushrut Paranjape
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1 Answers1

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These folders are not supported by Outlook web add-ins (as they are not shared folders).

Feature requests on Tech Community are considered, when the dev team go through the planning process. Use the github label: Type: product feature request at https://aka.ms/M365dev-suggestions .

Eugene Astafiev
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