Have you ever received an email from Apple after submission like this? The strangest thing is that I'm not using Apple Pay at all. Where should I look?
Dear developer,
We have discovered one or more issues with your recent delivery for “<APP>". Your delivery was successful, but you may wish to correct the following issues in your next delivery:
Missing Entitlement - App contains references to [Apple Pay] in ‘ <BundleName>', but is missing the required entitlement 'com.apple.developer.in-app-payments'.
After you’ve corrected the issues, you can use Xcode or Application Loader to upload a new binary to iTunes Connect.
Regards,
The App Store team
UPDATE: See jrg answer (in my case fixed my issue) I had an outdated Braintree Cocoapod. Thanks man!