iOS App Store Upload Error: ERROR ITMS-90076

When transferring an app to another account and uploading the IPA, you may encounter the following warning and error:

1WARNING ITMS-90076: “Potential Loss of Keychain Access. The previous version of software has an application-identifier value of ['AAAAAAAAAA.com.example.myApp.testApp'] and the new version of software being submitted has an application-identifier of ['BBBBBBBBBB.com.example.myApp.testApp']. This will result in a loss of keychain access.”

Cause

• This warning occurs due to an App Transfer.
• The Application Identifier differs between the old account and the new account, causing the system to warn about potential Keychain data loss.

Solution

• In practice, this warning does not affect IPA uploads.
• There is no need to repackage or re-upload the app.
• After uploading, log in to App Store Connect and verify that the build version appears correctly.

Note: Documenting this issue helps for quicker troubleshooting if encountered again in the future.