G Suite Marketplace SDK [Publish] button always greyed out?

Question

My app is finally published in the G Suite Marketplace. However, I need to update the banner image as it's blurry and the [Publish] button is always greyed out. What is missing from this screenshot?

Answer 1

I realize this is a very flimsy answer but after playing with the form, ensuring that I filled in every field, the publish button finally became available.

My guess is that a field labelled as optional is required.

Answer 2

Go into the OAuth Consent Screen, under "APIs and Services" and check that everything is filled in there too. The scopes for example don't always get automatically completed.

Answer 3

The instructions to update an Editor add-on where last updated on 2020-01-21.

Key things that you should check

1. The scopes in the add-on project, OAuth consent and G Suite Marketplace Config page match.
2. Al the required fields on the G Suite Marketplace Config page are filled (Google made some fields as required that weren't before)

Also you could try using Chrome in incognito mode with all the Chrome extensions disabled.