How to Solve ITMS-90035 Error: From Signature Chain Troubleshooting to IPA Regeneration

ITMS-90035 usually means App Store signature verification failed, not that the IPA itself is corrupted.

Common causes include using a development certificate, mismatched provisioning profiles, Bundle ID inconsistencies, and incomplete signing during export or CI builds.

Fixes typically involve regenerating the iOS Distribution certificate and App Store provisioning profile, then rebuilding the IPA.

CLI upload logs from Transporter, Fastlane, or Jenkins can help pinpoint the exact signing mismatch.