I'm getting back a 409 trying to edit the content rights declaration for one of my apps. It is correctly in the PREPARE_FOR_SUBMISSION state, confirmed through the API and on the ASC App Info page.
Here's my request:
curl -X PATCH -H 'Authorization: Bearer XXX' -H 'Content-Type: application/json' -d '{"data":{"id":"XXX","type":"apps","attributes":{"contentRightsDeclaration":"DOES_NOT_USE_THIRD_PARTY_CONTENT"}}}' "https://api.appstoreconnect.apple.com/v1/apps/XXX"
which returns a 409 "not in proper state" error. I would also expect to be able to edit in the UI but also is not available.
Any help is appreciated. Thank you.