Hi @Larry Scola
Welcome to our forum!
Looks like the issue is more related to Microsoft Graph. Please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client.
Based on my search, the profile card on which customization is allowed is currently only available for web apps such as Outlook Web App, OneDrive SharePoint, Office.com, etc. Also, this article may be helpful to you.
https://learn.microsoft.com/en-us/graph/add-properties-profilecard.
Hope this helps!
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