@bchandresh, I am unable to replicate the 503 errors on my device but some of my users are experiencing the issue. It looks like you are seeing the issue on your device, so can you please do the following: https://developer.apple.com/bug-reporting/profiles-and-logs/ Download the CloudKit profile on your device and then follow the instructions. Submit a bug report with that log file and it will help Apple determine what the issue is. I would do this myself, but I cannot replicate the issue on my device.

I am having the same issues for a small percentage of my users. I have submitted a bug report to Apple but have not heard back yet. Even after waiting for days, the 503 error persists for some of my users.

I have the same issue with a relatively small percentage of my users. They are getting 503 errors now, but last year did not. My code hasn’t changed. I’m not even sure how to file a bug report because I cannot replicate the issue on my devices and it’s occurring on a relatively small percentage of my users.

I have the same issue with a relatively small percentage of my users. They are getting 503 errors now, but last year did not. My code hasn’t changed. I’m not even sure how to file a bug report because I cannot replicate the issue on my devices and it’s occurring on a relatively small percentage of my users. Edit: I apologize I was trying to comment on your post, not submit an answer.

I cannot replicate this on my side either, but it's affecting many of my users randomly.

I have the same issue. I submitted a bug report.