Hi @Cured Chestnut ,
Welcome to our forum!
Looks like your case is more related to add-in development, please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client. Based on my research on how to publish the add-in to AppSource, i found an article mentioned it, please refer to it: Publish your Office Add-in to Microsoft AppSource.
Hope to help you, if it doesn't help, in order to better solve your problem, we will add "Office Development" tag. Thanks for your understanding!
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