Outlook Add in not working

JuliaE
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The Smartsheet Outlook Add-In works when I use the Outlook desktop version but does not work when I try the Outlook beta version, which is web-based. Below is the error message I received. Can the Add-In work in the new version of Outlook? Thanks!
Answers
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Sometimes this issue can be caused by your Office365 administrator changing security settings to disallow add-ins that have not been approved by administrators. Have you tried contacting your Office365 administrator?
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Thanks! I will contact our Office365 admin.