Submit add-ins with custom functions

Question

In this doc, it is mentioned that

The following features aren\'t yet supported in the Developer Preview.

... ...

Publishing add-i

Answer 1

Was meaning to reply back to this, but add-ins with custom functions are available to be submitted to the Office Store, as announced here: https://developer.microsoft.com/en-us/office/blogs/office-extensibility-build-2019/

Note: Centralized Deployment is still being deployed through all tenants and that will take a few more weeks to complete.