I am using APK with external OBB Extension file.
PlayStore Console UI has changed since I used this feature last. I can not figure out how to upload the OBB file.
Even the PlayStore help describes the wrong, old way.
https://support.google.com/googleplay/android-developer/answer/2481797?hl=de
Can someone please give me a hint.
Seems to be solved - the small + button was missing in the German UI Version. I changed my language to English and the + button was there. Now in 2018 the + button is also visible in the German UI. Thanx Google
I've been able to chat with Google support about this, and it's indeed kind of hard to miss. This is not like before where you could set the expansion file at APK upload anymore.
To upload an expansion file or use an existing expansion file, you can only do that while uploading the APK, not after you click on Save.
Once you uploaded the APK, on the line where the APK name is, there's a small + icon with the tooltip "Update APK", you have to click on this icon, and there there's the ability to set/upload expansion file.