We regularly submit builds, manage provisioning profiles, and query build statuses for a large number of applications across multiple store accounts. We rely on automated tooling (Fastlane / App Store Connect API) to manage this pipeline efficiently.
Recently, we have been experiencing HTTP 5xx errors when making requests to Apple's APIs (App Store Connect, Spaceship). We believe these failures are caused by rate limiting applied to our outbound IP addresses, as the errors correlate with periods of higher submission activity.
We have already taken steps on our side to mitigate the issue - including distributing requests across multiple external IP addresses - but we continue to encounter these errors during peak release periods, which delays application delivery to our clients and their end users.