The problem seemed to stem from not signing the archive (CODESIGNINGALLOWED=NO is bad in this case). Once the xarchive was signed with the provisioning profiles then I no longer received the email from Apple after uploading. I'd originally avoided signing the archive because I'd struggled to get it working with more than one provisioning profile but eventually found the following solution: https://stackoverflow.com/a/29605731/2520623 For reference, this is what my final archive command looked like: xcodebuild -sdk iphoneos -configuration Release -project myapp.xcodeproj -scheme MyApp archive -archivePath myapp.xcarchive -allowProvisioningUpdates OTHER_CODE_SIGN_FLAGS=--keychain tempkeychain.keychain APP_PROFILE=[UUID of app's prov profile] EXTENSION_PROFILE=[UUID of extension's prov profile]