How to upload expansion file in new play store console.

Hi,

I’m trying to upload an app to the play store, and the layout has changed since the last time. For some reason I cannot work out how to upload an expansion file with my apk. The option used to appear in the window that appears after uploading an apk, but the new version of this window does not include the option.

Any clues as to what I’m doing wrong?

Dont worry. It just decided to appear where the documentation said it should be on the third attempt to delete the app and reupload.

Expansions can only be uploaded with the second build.
First one should be beta published without expansion