ERROR ITMS-4088 - Does not have permission to modify the application

Question

Ok, so I am trying to submit an app for a client of ours.

They have invited me to their developer program as 'Admin' and we created all of the certs, provisioning profiles, and distribution profiles.

I am able to select their account when submitting also.

I go to submit the app via XCode 6.0.1 and it gets all the way to authenticating with iTunes Connect, then it throws this error...

ERROR ITMS-4088: "The organization "Company Name" does not have permission to modify the application with the Apple ID "App ID". Please try again, using an account for an organization with access to this application" at SoftwareAssets

Does anyone know why I am getting this?

I am pretty sure everything is setup correctly. Help! Thanks!

Answer 1

This one worked for me:

https://devforums.apple.com/message/1056570#1056570

Using the ITC Credentials with the Application Loader