So I'm trying to insert a video into someone else's playlist (I'm a collaborator). I can insert the video from youtube.com (website), but doing it via the YouTube API V3 gives a 403.
Response:
{ "error": { "errors": [ { "domain": "youtube.playlistItem", "reason": "playlistItemsNotAccessible", "message": "Forbidden" } ], "code": 403, "message": "Forbidden" } }
For the playlists that I own, the youtube api works fine.
Any clue how I can achieve this?