Hi, it's very urgency!
https://developer.apple.com/forums/thread/818346 After long time preparation, We finally execute this transfer operation today. Works fine at preliminary stage, lots of users had been transferred successfully. However, about 25% users transferred failed at the end, 'invalid_request' response from https://appleid.apple.com/auth/usermigrationinfo. No matter how many times we retry, it does work.
Please help! 700,000 users are waiting us!
Supplementary instruction.
We requested the transfer_sub for all the users at yesterday, it does working very perfect. These transfer_sub are preparing for exchange operation today.
However, like I telling you above, about 25% users was failed on the exchange operation.
And we found other weird.
Today, after a batch of users transferred failed, we chose some of them to redo the 'request transfer_sub' operation and we get the failure response: {"error":"invalid_request","error_description":"User not found."}.
And we chose some of users which are transferred successfully. Let them redo the 'request transfer_sub' operation and it's still succeed.
We just do the request transfer_sub operation yesterday and all are succeed, why some would failure today?
