Can't upload a .sppkg add-in to the Office Store

Question

I am trying to put an add-in on the Office Store, under the SharePoint Add-Ins section. It's a simple SPFx webpart.

The file is a .sppkg (SPFx package), but the store is demanding that my add-in should have the extension .app.

I'm a bit stuck - is there any way to share a .sppkg add-in? Presumably you can't just change the extension.

Answer 1

The only way to distribute SharePoint Framework packages are by somehow get them into the hands of the tenant administrator and let them add them to the Application Catalog. They can't be added to the Store and I hope that this will not change as there is no way to secure them.

In this blog post from the SharePoint team you can see that they still promote Add-ins for Office store distibution (end of third last paragraph).