Entra App Gallery required for Excel AddIn

Hi,

We have an Excel Addin published to Microsoft AppSource: https://appsource.microsoft.com/en-us/product/office/WA200009029?tab=Overview

The Excel Addin uses Entra ID to obtain an OIDC token to securely / seamlessly access MS 365 SharePoint on behalf of the user. In order to achive this the Entra ID subscription needs the TR4E application registered as an Enterprise Application / App Registration.

My question is whether I need to submit the TR4E application separately to the Entra App Gallery, so it can be installed by the Entra ID admin - or will the registration in Entra ID happen automatically when a new user first tries using TR4E?

I note that MS has suspended new application submissions for Entra App Gallery, which means our customers would need to manually create the Entra ID Enterprise Application (which is not a great experience).

Cheers,

Andrew