I'm getting the following error when attempting to create a leaderboard via the documented POST url. Here is the full error response: { "errors" : [ { "id" : "xxxxxx", "status" : "400", "code" : "ENTITY_INVALID", "title" : "The request entity is not valid json", "detail" : "The request entity data could not be processed. Please ensure you are sending valid json.", "meta" : { "position" : { "row" : 1, "column" : 1 } } } ] } Except what I'm sending IS valid JSON, emitted directly from JsonUtility and verified via JSONLint: {"data":{"type":"gameCenterLeaderboards","attributes":{"defaultFormatter":"INTEGER","referenceName":"TEST_AUTO","vendorIdentifier":"TEST_AUTO","submissionType":"MOST_RECENT_SCORE","sortScoreType":"DESC","scoreRangeStart":"0","scoreRangeEnd":"20000","recurrenceStartDate":"2025-06-25T13:00:00Z","recurrenceDuration":"PT30M","recurrenceRule":"FREQ=HOURLY;INTERVAL=1"},"relationships":{"gameCenterDetail":{"data":{"type":"gameCenterDetails","id":"xxxxxx"}}}}} This follows EXACTLY the pattern in the App Store Connect documentation. I've even tried sending the example JSON they give (swapping out the id and fixing the quotation marks) and the server rejects THAT as not being valid JSON. What am I doing wrong? Thanks!

My admin has given me (App Manager) the permission to create API keys. If I visit my profile, I can see that permission ticked, and the "Individual API Key" section is now visible where it was not before. However, there is no button to create an individual API key. What else do we need to do to make this option available?