I tried to submit my app via the Notary Service with this command: xcrun notarytool submit "${DMG_DIR}/${DMG_NAME}" --key "${APP_STORE_API_KEY}" --key-id "${KEY}" --issuer "${ISSUER}" --verbose and I called the API to get the status of the submission, and it said it was rejected without any meta data. I did codesign the app with this command: codesign --force --timestamp --deep --sign "Developer ID Application: MY_NAME" "${DMG_DIR}/${DMG_NAME}" Verify it with this command: codesign -vvv --deep --strict "${DMG_DIR}/${DMG_NAME}" The verification response: /Users/runner/work/1/a/cli/osx-x64/{DMGFILE}.dmg: valid on disk /Users/runner/work/1/a/cli/osx-x64/{DMGFILE}.dmg: satisfies its Designated Requirement Verify the timestamp with this command and response: Executable=/Users/runner/work/1/a/cli/osx-x64/{DMGFILE}.dmg Identifier={IDENTIFIER} Format=disk image CodeDirectory v=20200 size=297 flags=0x0(none) hashes=1+6 location=embedded Signature size=8975 Authority=Developer ID Application: MY_NAME Authority=Developer ID Certification Authority Authority=Apple Root CA Timestamp=Feb 14, 2024 at 7:40:35 PM Info.plist=not bound TeamIdentifier=TEAM_ID Sealed Resources=none Internal requirements count=1 size=172 I wonder if I missed any steps. Thank you for the help.